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Modal Verbs

Possibility

Ability

TO BE ABLE TO

COULD

CAN

Skill or general ability

Skill or general ability in the past

= CAN

but is more formal, and talk about abilities

past

present

future

to be able to

was/were

to be able to

am/are/is

to be able to

will be able to/goint to be able to

RULES

Modals are followed by infinitive whithot to

Negative Modals use not or n´t

in questions the subject and the modal are inversed

Modals do not change

Modals have no past form

Can

Could(possibility)

Will

Would

Shall

Should

Must

Might(possibility, unreal situation)

May (possibility)

Start with "W"

Start with "C"

Start with"M"

Start with "S"