English verb conjugation
CAN GRAY

Regular verb: gray - grayed - grayed

Affirmation

Simple form	V-ing form
I can gray you can gray she can gray we can gray you can gray they can gray	I can be graying you can be graying she 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 she 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 she 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 she cannot gray we cannot gray you cannot gray they cannot gray	I cannot be graying you cannot be graying she 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 she 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 she 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 she gray? can we gray? can you gray? can they gray?	can I be graying? can you be graying? can she 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 she 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 she 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 she 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 she 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 she 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 she not have been graying? can we not have been graying? can you not have been graying? can they not have been graying?