English verb conjugation
CAN FORCE

Regular verb: force - forced - forced

Affirmation

Simple form	V-ing form
I can force you can force he can force we can force you can force they can force	I can be forcing you can be forcing he can be forcing we can be forcing you can be forcing they can be forcing
Perfect	V-ing perfect
I can have forced you can have forced he can have forced we can have forced you can have forced they can have forced	I can have been forcing you can have been forcing he can have been forcing we can have been forcing you can have been forcing they can have been forcing

Negation

Simple form	V-ing form
I cannot force you cannot force he cannot force we cannot force you cannot force they cannot force	I cannot be forcing you cannot be forcing he cannot be forcing we cannot be forcing you cannot be forcing they cannot be forcing
Perfect	V-ing perfect
I cannot have forced you cannot have forced he cannot have forced we cannot have forced you cannot have forced they cannot have forced	I cannot have been forcing you cannot have been forcing he cannot have been forcing we cannot have been forcing you cannot have been forcing they cannot have been forcing

Interrogative form

Simple form	V-ing form
can I force? can you force? can he force? can we force? can you force? can they force?	can I be forcing? can you be forcing? can he be forcing? can we be forcing? can you be forcing? can they be forcing?
Perfect	V-ing perfect
can I have forced? can you have forced? can he have forced? can we have forced? can you have forced? can they have forced?	can I have been forcing? can you have been forcing? can he have been forcing? can we have been forcing? can you have been forcing? can they have been forcing?

Interro-negative form

Simple form	V-ing form
can I not force? can you not force? can he not force? can we not force? can you not force? can they not force?	can I not be forcing? can you not be forcing? can he not be forcing? can we not be forcing? can you not be forcing? can they not be forcing?
Perfect	V-ing perfect
can I not have forced? can you not have forced? can he not have forced? can we not have forced? can you not have forced? can they not have forced?	can I not have been forcing? can you not have been forcing? can he not have been forcing? can we not have been forcing? can you not have been forcing? can they not have been forcing?