English verb conjugation
CAN LIFT

Regular verb: lift - lifted - lifted

Affirmation

Simple form	V-ing form
I can lift you can lift he can lift we can lift you can lift they can lift	I can be lifting you can be lifting he can be lifting we can be lifting you can be lifting they can be lifting
Perfect	V-ing perfect
I can have lifted you can have lifted he can have lifted we can have lifted you can have lifted they can have lifted	I can have been lifting you can have been lifting he can have been lifting we can have been lifting you can have been lifting they can have been lifting

Negation

Simple form	V-ing form
I can't lift you can't lift he can't lift we can't lift you can't lift they can't lift	I can't be lifting you can't be lifting he can't be lifting we can't be lifting you can't be lifting they can't be lifting
Perfect	V-ing perfect
I can't have lifted you can't have lifted he can't have lifted we can't have lifted you can't have lifted they can't have lifted	I can't have been lifting you can't have been lifting he can't have been lifting we can't have been lifting you can't have been lifting they can't have been lifting

Interrogative form

Simple form	V-ing form
can I lift? can you lift? can he lift? can we lift? can you lift? can they lift?	can I be lifting? can you be lifting? can he be lifting? can we be lifting? can you be lifting? can they be lifting?
Perfect	V-ing perfect
can I have lifted? can you have lifted? can he have lifted? can we have lifted? can you have lifted? can they have lifted?	can I have been lifting? can you have been lifting? can he have been lifting? can we have been lifting? can you have been lifting? can they have been lifting?

Interro-negative form

Simple form	V-ing form
can't I lift? can't you lift? can't he lift? can't we lift? can't you lift? can't they lift?	can't I be lifting? can't you be lifting? can't he be lifting? can't we be lifting? can't you be lifting? can't they be lifting?
Perfect	V-ing perfect
can't I have lifted? can't you have lifted? can't he have lifted? can't we have lifted? can't you have lifted? can't they have lifted?	can't I have been lifting? can't you have been lifting? can't he have been lifting? can't we have been lifting? can't you have been lifting? can't they have been lifting?