Bomi’s Tale

■ Here is a list of the modal verbs in English :

can / could / may / might / would / mush / shall / should

■ Modals are different from normal verbs :

1) They don't use an 's' for the third person singular.

2) They make questions by inversion ('she can go' becomes 'can she go?').

3) They are followed directly by the infinitive of another verb (without 'to').

1) 뒤에 's' 안 옴.

2) modal verbs 가 앞에 오게되면 의문문을 만들 수 있다.

3) 뒤에 'to' 오면 안 됨.

[ref link]

www.perfect-english-grammar.com/modal-verbs.html

Modal Verbs

- Ability [Can, Could]

1) David can speak three languages

2) He could speak fluent French when he was five.

- Permission [Can, Could, May]

1) Can I have a coffee please?

2) Could I open the window?

3) May I ask you a question?

Polite : Can < Could < May

- Advice [Should]

1) You should go to a doctor about your cough.

2) You should try to be kind.

- Obligation [Mush, Have to]

1) I must memorise grammar rules.

2) You have to drink water every day.

3) You don’t have to drink wine, if you don’t want to.

- Possibility [Might, May, Could, Can]

1) It might be dangerous to go on holiday in this period.

2) My brother may be coming to see me tomorrow.

[ref link]

www.perfect-english-grammar.com/modal-verbs-of-ability-exercise-1.html