can, could and (be) able to

could (do) and could have (done)

must and can’t

may and might – 1

may and might – 2

have to, have got to and must

must, mustn’t and needn’t

should and ought to

should (Contd…)

Had better, It’s time…

can / could / would you?

If I do / If I did

If I knew, I wish I knew

If I had known, I wish I had known, Had I known

would, I wish… would

Passive – 1

Passive - 2