I can amend you can amend he can amend we can amend you can amend they can amend
V-ing form
I can be amending you can be amending he can be amending we can be amending you can be amending they can be amending
Perfect
I can have amended you can have amended he can have amended we can have amended you can have amended they can have amended
V-ing perfect
I can have been amending you can have been amending he can have been amending we can have been amending you can have been amending they can have been amending
Negation
Simple form
I cannot amend you cannot amend he cannot amend we cannot amend you cannot amend they cannot amend
V-ing form
I cannot be amending you cannot be amending he cannot be amending we cannot be amending you cannot be amending they cannot be amending
Perfect
I cannot have amended you cannot have amended he cannot have amended we cannot have amended you cannot have amended they cannot have amended
V-ing perfect
I cannot have been amending you cannot have been amending he cannot have been amending we cannot have been amending you cannot have been amending they cannot have been amending
Interrogative form
Simple form
can I amend? can you amend? can he amend? can we amend? can you amend? can they amend?
V-ing form
can I be amending? can you be amending? can he be amending? can we be amending? can you be amending? can they be amending?
Perfect
can I have amended? can you have amended? can he have amended? can we have amended? can you have amended? can they have amended?
V-ing perfect
can I have been amending? can you have been amending? can he have been amending? can we have been amending? can you have been amending? can they have been amending?
Interro-negative form
Simple form
can I not amend? can you not amend? can he not amend? can we not amend? can you not amend? can they not amend?
V-ing form
can I not be amending? can you not be amending? can he not be amending? can we not be amending? can you not be amending? can they not be amending?
Perfect
can I not have amended? can you not have amended? can he not have amended? can we not have amended? can you not have amended? can they not have amended?
V-ing perfect
can I not have been amending? can you not have been amending? can he not have been amending? can we not have been amending? can you not have been amending? can they not have been amending?