Books4Languages (English)

Shall is a modal verb used in question form to ask for instructions or for formulating requests in a polite way. https://open.books4languages.com/english-a2-grammar/chapter/questions-with-shall/

A question tag is a small question at the end of a sentence which is used to check information, ask for confirmation (negative tag) or agreement (positive tag). https://open.books4languages.com/english-a2-grammar/chapter/question-tags-formation/

Wh- questions always begin with one of the wh- question words (interrogative pronouns), which show what kind of information is wanted {see Wh- Questions, A1 Level}. We can also use them to ask questions about the past. https://open.books4languages.com/english-a2-grammar/chapter/wh-questions-in-past-form/

Wh- questions always begin with one of the wh- question words (interrogative pronouns), which show what kind of information is wanted {see Wh- Questions, A1 Level}. The pronoun who is used to ask about the subject of the action. https://open.books4languages.com/english-a2-grammar/chapter/wh-questions-words-who/

A phrasal verb is a two-part verb formed by a verb and a particle. The particle usually gives a whole new meaning to the verb. https://open.books4languages.com/english-a2-grammar/chapter/phrasal-verbs/

Prepositional phrases are the result of the combination of the prepositions and other elements of the sentence (verbs) {see Prepositional Phrases, A1 Level}. A prepositional verb is every verb followed by a preposition. https://open.books4languages.com/english-a2-grammar/chapter/prepositional-phrases/

Prepositions are essential because they provide additional details about the sentence. Adjectives are determiners that can be placed in two different positions within a sentence to modify or describe a person or a thing. Certain adjectives are used only with specific prepositions. https://open.books4languages.com/english-a2-grammar/chapter/common-adjective-and-preposition-combinations/

Determiners are modifiers of nouns. They can provide information about which and how much/many people, things, animals, places… we are talking about. Quantitative determiners or quantifiers are used to indicate the quantity of something {see Quantitative Determiners, A1 Level}. https://open.books4languages.com/english-a2-grammar/chapter/quantitative-determiners/

Adverbs are expressions that function as modifiers of other elements in the clause. They can provide a wide range of information. Adverbs of degree are used to provide information about the intensity of an action or adjective {see Adverbs of Degree, A1 Level}. Intensifiers and mitigators are part of adverbs of degree. https://open.books4languages.com/english-a2-grammar/chapter/intensifiers-and-mitigators/

Comparisons with adjectives and adverbs are used to compare things, people or actions, expressing the equalities or inequalities between them. The comparative of equality (as…as clause) is used for the same purpose. {see Comparisons with Adjectives and Adverbs, A1 level} https://open.books4languages.com/english-a2-grammar/chapter/comparatives-clauses-as-as/

Prepositions are small words that connect elements in a sentence. They are essential because they provide additional details about the sentence. Prepositions of possession are used to express that something belongs to a person, animal or thing. https://open.books4languages.com/english-a2-grammar/chapter/prepositions-of-possession/

Prepositions are small words that connect elements in a sentence. They are essential because they provide additional details about the sentence. Prepositions of method and manner are used to explain in what way something is done. https://open.books4languages.com/english-a2-grammar/chapter/prepositions-of-method-and-manner/

Prepositions are small words that connect elements in a sentence. They are essential because they provide additional details about the sentence. We use the prepositions of place to locate an event in space. https://open.books4languages.com/english-a2-grammar/chapter/prepositions-of-place-extension/

Adverbs are expressions that function as modifiers of other elements in the clause. They can provide a wide range of information. Adverbs of place provide information about the place of an action. https://open.books4languages.com/english-a2-grammar/chapter/adverbs-of-place/

Adverbs are expressions that function as modifiers of other elements in the clause. They can provide a wide range of information. Adverbs of degree or intensifiers are used to provide information about the intensity of an action or adjective {see Adverbs of Degree, A1 level}. https://open.books4languages.com/english-a2-grammar/chapter/adverbs-of-degree/

Adverbs are expressions that function as modifiers of other elements in the clause. They can provide a wide range of information. Adverbs of manner are used to provide information about the way (how) something is done. https://open.books4languages.com/english-a2-grammar/chapter/adverbs-of-manner/

Adverbs are expressions that function as modifiers of other elements in the clause. They can provide a wide range of information. https://open.books4languages.com/english-a2-grammar/chapter/adverbs-formation/

So that and so…that are two different, though similar, constructions which express different things. So that highlights the consequences of an action or purpose. So…that shows extremes leading to certain results. https://open.books4languages.com/english-a2-grammar/chapter/so-that-vs-so-that/

One and ones are replacing words that are used to avoid repetition. https://open.books4languages.com/english-a2-grammar/chapter/one-and-ones/

A modal verb is a type of auxiliary (helping) verb that has no meaning on its own but it modifies the main verb, changes its meaning and gives more details about the action. May is a type of auxiliary modal verb used to express the possibility for something to happen and also to ask for or give permission. https://open.books4languages.com/english-a2-grammar/chapter/may-modals-of-possibility/

A modal verb is a type of auxiliary (helping) verb that has no meaning on its own but it modifies the main verb, changes its meaning and gives more details about the action. Could is the past form of the modal verb can. These are types of modal auxiliary verbs used to express the idea of ability or permission {see Can: Modals of Ability, A1 Level}. https://open.books4languages.com/english-a2-grammar/chapter/can-and-could-modals-of-ability/

Like as a verb is used to express things we enjoy and take pleasure in. The preposition like is used to make a comparison between two similar or identical things or ideas. https://open.books4languages.com/english-a2-grammar/chapter/comparisons-with-like/

Like as a verb is used to express things we enjoy and take pleasure in. Like can also be used as a preposition to make questions. https://open.books4languages.com/english-a2-grammar/chapter/questions-with-like/

Both should and ought to belong to the group of auxiliary modal verbs that have no meaning on their own but they modify the main verb, change its meaning and give more details about the action. Should and ought to are used to express obligation and duty through advice or recommendations. https://open.books4languages.com/english-a2-grammar/chapter/should-vs-ought-to/

A modal verb is a type of auxiliary (helping) verb that has no meaning on its own but it modifies the main verb, changes its meaning and gives more details about the action. Ought to is a type of auxiliary modal verb used to express obligation and duty through advice or recommendations. https://open.books4languages.com/english-a2-grammar/chapter/ought-to-modal-auxiliary-verb/

A modal verb is a type of auxiliary (helping) verb that has no meaning on its own but it modifies the main verb, changes his meaning and gives more details about the action. Should is a type of auxiliary modal verb used to express obligation and duty through advice or recommendations. https://open.books4languages.com/english-a2-grammar/chapter/should-modal-auxiliary-verb/

Pronouns are words used to avoid repetitions of a noun. Indefinite pronouns do not refer to any specific person, thing or amount. Something refers to objects with unspecified quantity while nothing refers to absent objects. https://open.books4languages.com/english-a2-grammar/chapter/indefinite-pronouns-something-and-nothing/

A modal verb is a type of auxiliary (helping) verb that has no meaning on its own but it modifies the main verb, changes its meaning and gives more details about actions. Have to is a type of auxiliary modal verb used to express certainty, necessity or strong obligation which comes from outside, from external factors. https://open.books4languages.com/english-a2-grammar/chapter/have-to-modals-of-obligation/

A modal verb is a type of auxiliary (helping) verb that has no meaning on its own but it modifies the main verb, changes its meaning and gives more details about the action. Must is a type of auxiliary modal verb used to express certainty, necessity or strong obligation which doesn’t come from outside, it’s a personal opinion. It also expresses prohibition in the negative form. https://open.books4languages.com/english-a2-grammar/chapter/must-modals-of-obligation/

Prepositions are small words that connect elements in a sentence. They are essential because they provide additional details about the sentence. We use prepositions of place to locate an event in a space frame {see Common Prepositions of Time and Place, A1 level}. https://open.books4languages.com/english-a2-grammar/chapter/prepositions-of-place/

Prepositions are small words that connect elements in a sentence. They are essential because they provide additional details about the sentence. We use prepositions of movement to express movement or directions. https://open.books4languages.com/english-a2-grammar/chapter/prepositions-of-movement/

Prepositions are small words that connect elements in a sentence. They are essential because they provide additional details about the sentence. We use prepositions of time to locate an event in a time frame {see Common Prepositions of Time and Place, A1 level}. https://open.books4languages.com/english-a2-grammar/chapter/prepositions-of-time/

Nouns refer to a person, place, thing, event, substance or quality. Invariant nouns are nouns which have the same singular and plural form. https://open.books4languages.com/english-a2-grammar/chapter/invariant-plural-nouns/

A few/a little and few/little are quantifiers which mean not enough or some/enough. https://open.books4languages.com/english-a2-grammar/chapter/a-few-vs-a-little-and-few-vs-little/

Nouns refer to a person, place, thing, event, substance or quality. Uncountable nouns are nouns which cannot be counted easily or what we refer to as a mass {see Countable and Uncountable Nouns, A1 level}. https://open.books4languages.com/english-a2-grammar/chapter/uncountable-nouns/

We can use the to-infinitive structure to express someone’s purpose (the reason or the aim of an action). https://open.books4languages.com/english-a2-grammar/chapter/the-infinitive-of-purpose/

There are some verbs that need to be followed by a gerund or infinitive. https://open.books4languages.com/english-a2-grammar/chapter/verbs-followed-by-gerunds-and-infinitives/

Adjectives are determiners that can be placed in two different positions within a sentence to modify or describe a person or a thing. Adjectives can be used with active or passive voice. https://open.books4languages.com/english-a2-grammar/chapter/active-and-passive-adjectives/

To be used to is a structure used to express habits and customs that are familiar to us. The interrogative form is used to ask questions about the subject’s customs. https://open.books4languages.com/english-a2-grammar/chapter/to-be-used-to-interrogative/

To be used to is a structure used to express habits and customs that are familiar to us. When expressed in its negative form, the verb denies that the subject has some customs. https://open.books4languages.com/english-a2-grammar/chapter/to-be-used-to-negative/

To be used to is a structure used to express habits and customs that are familiar to us. When expressed in its affirmative form, the verb confirms that the subject has some customs. https://open.books4languages.com/english-a2-grammar/chapter/to-be-used-to-affirmative/

Temporal clauses are part of the adverbial clauses which are composed of independent and dependent clauses, linked by connectors. The connectors of temporal clauses refer to a specific point in time. https://open.books4languages.com/english-a2-grammar/chapter/temporal-subordinate-clauses/

Adverbs are nouns that function as modifiers of other elements of the clause. They can provide a wide range of information. Adverbs of frequency are used to provide information about the frequency of an event {see Adverbs of Frequency, A1 level}. https://open.books4languages.com/english-a2-grammar/chapter/adverbs-of-frequency/

Adverbs are nouns that function as modifiers of other elements of the clause. They can provide a wide range of information. Adverbs of time are used to provide information about the time. https://open.books4languages.com/english-a2-grammar/chapter/adverbs-of-time/

A conditional sentence is usually composed of two parts: the if-clause (or conditional clause) that expresses the condition, and the main clause that expresses the consequence of that condition. First conditional is used to express future conditions and consequences or to express something that is possible to happen. https://open.books4languages.com/english-a2-grammar/chapter/first-conditional/

A conditional sentence is usually composed of two parts: the if-clause (or conditional clause) that expresses the condition, and the main clause that expresses the consequence of that condition. We use the zero conditional structure when the result of the condition is always true. https://open.books4languages.com/english-a2-grammar/chapter/zero-conditional/

The past continuous (or progressive) is the tense used to express situations that take place in the past and were in progress at any moment during a period of time. When expressed in its interrogative form, it is used to make questions about things that were happening in a past period of time. https://open.books4languages.com/english-a2-grammar/chapter/past-continuous-interrogative/

The past continuous (or progressive) is the tense used to express situations that occurred in the past and were in progress at any moment during a period of time. When expressed in its negative form, the verb denies that something was happening in a past period of time. https://open.books4languages.com/english-a2-grammar/chapter/past-continuous-negative/

The past continuous (or progressive) is the tense used to express situations that occurred in the past and were in progress at any moment during a period of time. When expressed in its affirmative form, the verb confirms that something was happening in a past period of time. https://open.books4languages.com/english-a2-grammar/chapter/past-continuous-affirmative/

Pronouns are words used to avoid repetitions of a noun {see Subject Pronouns, A1 Level}. Relative pronouns are used to introduce relative clauses. They refer to place and time by replacing the subject expressed in the main clause to avoid the repetition of it in the relative clauses {see Relative Pronouns, A1 Level}. https://open.books4languages.com/english-a2-grammar/chapter/relative-pronouns-of-place-and-time/

Pronouns are words used to avoid repetitions of a noun {see Subject Pronoums, A1 Level}. Relative pronouns are used to introduce relative clauses. They refer to people or things by replacing the subject expressed in the main clause to avoid the repetition of it in the relative clause {see Relative Pronouns, A1 level}. https://open.books4languages.com/english-a2-grammar/chapter/relative-pronouns-of-people-and-things/