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/