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 cannot lift you cannot lift he cannot lift we cannot lift you cannot lift they cannot lift	I cannot be lifting you cannot be lifting he cannot be lifting we cannot be lifting you cannot be lifting they cannot be lifting
Perfect	V-ing perfect
I cannot have lifted you cannot have lifted he cannot have lifted we cannot have lifted you cannot have lifted they cannot have lifted	I cannot have been lifting you cannot have been lifting he cannot have been lifting we cannot have been lifting you cannot have been lifting they cannot 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 I not lift? can you not lift? can he not lift? can we not lift? can you not lift? can they not lift?	can I not be lifting? can you not be lifting? can he not be lifting? can we not be lifting? can you not be lifting? can they not be lifting?
Perfect	V-ing perfect
can I not have lifted? can you not have lifted? can he not have lifted? can we not have lifted? can you not have lifted? can they not have lifted?	can I not have been lifting? can you not have been lifting? can he not have been lifting? can we not have been lifting? can you not have been lifting? can they not have been lifting?