English Grammar A1 Level: The verb to be is essential in grammar. It is an auxiliary verb and it is one of the irregular verbs.

To express situations that occurred in the past and have now concluded, we use the past tense of the verb.

https://open.books4languages.com/english-a1-grammar/chapter/past-simple-of-to-be

English Grammar A1 Level: The past simple is the tense used to express situations that occurred in the past and have now concluded.

Many common verbs have irregular past forms.

https://open.books4languages.com/english-a1-grammar/chapter/past-simple-of-irregular-verbs

English Grammar A1 Level: The past simple is the tense used to express situations, events and actions that happened in the past.

When expressed in its interrogative form, it is used to ask questions about the past.

https://open.books4languages.com/english-a1-grammar/chapter/past-simple-interrogative

English Grammar A1 Level: The past simple is the tense used to express situations, events and actions that happened in the past.

When expressed in its negative form, the verb denies something about the subject.

https://open.books4languages.com/english-a1-grammar/chapter/past-simple-negative

English Grammar A1 Level: The past simple is the tense used to express situations, events and actions that happened in the past.

When expressed in its affirmative form, the verb confirms something about the subject.

https://open.books4languages.com/english-a1-grammar/chapter/past-simple-affirmative

English Grammar A1 Level: The present continuous (or progressive) is the tense used to express situations that are happening now (before, during and after the moment of speaking).

When expressed in its interrogative form, it is used to form questions about something that is happening now.

https://open.books4languages.com/english-a1-grammar/chapter/present-continuous-interrogative

English Grammar A1 Level: The present continuous (or progressive) is the tense used to express situations that are happening now (before, during and after the moment of speaking).

When expressed in its negative form, the verb denies that something is happening now.

https://open.books4languages.com/english-a1-grammar/chapter/present-continuous-negative

English Grammar A1 Level: The present continuous (or progressive) is the tense used to express situations that are happening now (before, during and after the moment of speaking).

When expressed in its affirmative form, the verb confirms that something is happening now.

https://open.books4languages.com/english-a1-grammar/chapter/present-continuous-affirmative

English Grammar A1 Level: The possessive case is used to talk about things that belong to a person or animal. We can even use it to show that one thing belongs to another.

https://open.books4languages.com/english-a1-grammar/chapter/possessive-case

English Grammar A1 Level: 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.

The verb would is a modal verb used to express willingness in the past, polite request, preferences/desires, offers and invitations.

https://open.books4languages.com/english-a1-grammar/chapter/would-modals-of-ability