English verb conjugation
CAN GRIP

Regular verb: grip - gripped - gripped

Affirmation

Simple form	V-ing form
I can grip you can grip he can grip we can grip you can grip they can grip	I can be gripping you can be gripping he can be gripping we can be gripping you can be gripping they can be gripping
Perfect	V-ing perfect
I can have gripped you can have gripped he can have gripped we can have gripped you can have gripped they can have gripped	I can have been gripping you can have been gripping he can have been gripping we can have been gripping you can have been gripping they can have been gripping

Negation

Simple form	V-ing form
I cannot grip you cannot grip he cannot grip we cannot grip you cannot grip they cannot grip	I cannot be gripping you cannot be gripping he cannot be gripping we cannot be gripping you cannot be gripping they cannot be gripping
Perfect	V-ing perfect
I cannot have gripped you cannot have gripped he cannot have gripped we cannot have gripped you cannot have gripped they cannot have gripped	I cannot have been gripping you cannot have been gripping he cannot have been gripping we cannot have been gripping you cannot have been gripping they cannot have been gripping

Interrogative form

Simple form	V-ing form
can I grip? can you grip? can he grip? can we grip? can you grip? can they grip?	can I be gripping? can you be gripping? can he be gripping? can we be gripping? can you be gripping? can they be gripping?
Perfect	V-ing perfect
can I have gripped? can you have gripped? can he have gripped? can we have gripped? can you have gripped? can they have gripped?	can I have been gripping? can you have been gripping? can he have been gripping? can we have been gripping? can you have been gripping? can they have been gripping?

Interro-negative form

Simple form	V-ing form
can I not grip? can you not grip? can he not grip? can we not grip? can you not grip? can they not grip?	can I not be gripping? can you not be gripping? can he not be gripping? can we not be gripping? can you not be gripping? can they not be gripping?
Perfect	V-ing perfect
can I not have gripped? can you not have gripped? can he not have gripped? can we not have gripped? can you not have gripped? can they not have gripped?	can I not have been gripping? can you not have been gripping? can he not have been gripping? can we not have been gripping? can you not have been gripping? can they not have been gripping?