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Modals, Semi-modals - Coggle Diagram
Modals
May
Possibility in the present or future
Formal request
Formal permission
Lack of permission
Might
Past of
may
Possibility in the present or future
Negative possibility
Must
Strong necesity
You must start studying
Obligation
You must wear a helmet while riding a motorbike
Near certainty
···
Suggestion or recomendation
Mustn't
Negative form of
must
Prohibition
Can
General ability in the present or future
Informal request
Permission
Can't
Negative form of
can
Impossibility or something hard to believe
Should or Ought to
Advice or opinion
You should study harder
Obligation
I should go to high school
Polite suggestion
Should I open the window for you?
Prediction
It should rain
Could
Past of
can
General ability in the past
Possibility
Request
Suggestion
Couldn't
Negatiive form of
could
Inability
Will
Polite request
Would
Past of
will
Polite request
Repeated action in the past
Wouldn't
Negative form of
would
Refusal or imposibility
Needn't
Negative form of
need
Lack of obligatiion or necessity
Shall
Polite question, offer or suggestion
Semi-modals
Be able to
General Ability
Specific past ability
Have to
Obligation or necessity
Don't have to
Lack of obligation