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 can't gray you can't gray he can't gray we can't gray you can't gray they can't gray	I can't be graying you can't be graying he can't be graying we can't be graying you can't be graying they can't be graying
Perfect	V-ing perfect
I can't have grayed you can't have grayed he can't have grayed we can't have grayed you can't have grayed they can't have grayed	I can't have been graying you can't have been graying he can't have been graying we can't have been graying you can't have been graying they can't 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't I gray? can't you gray? can't he gray? can't we gray? can't you gray? can't they gray?	can't I be graying? can't you be graying? can't he be graying? can't we be graying? can't you be graying? can't they be graying?
Perfect	V-ing perfect
can't I have grayed? can't you have grayed? can't he have grayed? can't we have grayed? can't you have grayed? can't they have grayed?	can't I have been graying? can't you have been graying? can't he have been graying? can't we have been graying? can't you have been graying? can't they have been graying?