English verb conjugation
CAN GRAY

Regular verb: gray - grayed - grayed

Affirmation

Simple form	V-ing form
I can gray you can gray he can gray we can gray you can gray they can gray	I can be graying you can be graying he can be graying we can be graying you can be graying they can be graying
Perfect	V-ing perfect
I can have grayed you can have grayed he can have grayed we can have grayed you can have grayed they can have grayed	I can have been graying you can have been graying he can have been graying we can have been graying you can have been graying they can have been graying

Negation

Simple form	V-ing form
I cannot gray you cannot gray he cannot gray we cannot gray you cannot gray they cannot gray	I cannot be graying you cannot be graying he cannot be graying we cannot be graying you cannot be graying they cannot be graying
Perfect	V-ing perfect
I cannot have grayed you cannot have grayed he cannot have grayed we cannot have grayed you cannot have grayed they cannot have grayed	I cannot have been graying you cannot have been graying he cannot have been graying we cannot have been graying you cannot have been graying they cannot have been graying

Interrogative form

Simple form	V-ing form
can I gray? can you gray? can he gray? can we gray? can you gray? can they gray?	can I be graying? can you be graying? can he be graying? can we be graying? can you be graying? can they be graying?
Perfect	V-ing perfect
can I have grayed? can you have grayed? can he have grayed? can we have grayed? can you have grayed? can they have grayed?	can I have been graying? can you have been graying? can he have been graying? can we have been graying? can you have been graying? can they have been graying?

Interro-negative form

Simple form	V-ing form
can I not gray? can you not gray? can he not gray? can we not gray? can you not gray? can they not gray?	can I not be graying? can you not be graying? can he not be graying? can we not be graying? can you not be graying? can they not be graying?
Perfect	V-ing perfect
can I not have grayed? can you not have grayed? can he not have grayed? can we not have grayed? can you not have grayed? can they not have grayed?	can I not have been graying? can you not have been graying? can he not have been graying? can we not have been graying? can you not have been graying? can they not have been graying?