English verb conjugation
CAN SUPPLEMENT

Regular verb: supplement - supplemented - supplemented

Affirmation

Simple form	V-ing form
I can supplement you can supplement he can supplement we can supplement you can supplement they can supplement	I can be supplementing you can be supplementing he can be supplementing we can be supplementing you can be supplementing they can be supplementing
Perfect	V-ing perfect
I can have supplemented you can have supplemented he can have supplemented we can have supplemented you can have supplemented they can have supplemented	I can have been supplementing you can have been supplementing he can have been supplementing we can have been supplementing you can have been supplementing they can have been supplementing

Negation

Simple form	V-ing form
I cannot supplement you cannot supplement he cannot supplement we cannot supplement you cannot supplement they cannot supplement	I cannot be supplementing you cannot be supplementing he cannot be supplementing we cannot be supplementing you cannot be supplementing they cannot be supplementing
Perfect	V-ing perfect
I cannot have supplemented you cannot have supplemented he cannot have supplemented we cannot have supplemented you cannot have supplemented they cannot have supplemented	I cannot have been supplementing you cannot have been supplementing he cannot have been supplementing we cannot have been supplementing you cannot have been supplementing they cannot have been supplementing

Interrogative form

Simple form	V-ing form
can I supplement? can you supplement? can he supplement? can we supplement? can you supplement? can they supplement?	can I be supplementing? can you be supplementing? can he be supplementing? can we be supplementing? can you be supplementing? can they be supplementing?
Perfect	V-ing perfect
can I have supplemented? can you have supplemented? can he have supplemented? can we have supplemented? can you have supplemented? can they have supplemented?	can I have been supplementing? can you have been supplementing? can he have been supplementing? can we have been supplementing? can you have been supplementing? can they have been supplementing?

Interro-negative form

Simple form	V-ing form
can I not supplement? can you not supplement? can he not supplement? can we not supplement? can you not supplement? can they not supplement?	can I not be supplementing? can you not be supplementing? can he not be supplementing? can we not be supplementing? can you not be supplementing? can they not be supplementing?
Perfect	V-ing perfect
can I not have supplemented? can you not have supplemented? can he not have supplemented? can we not have supplemented? can you not have supplemented? can they not have supplemented?	can I not have been supplementing? can you not have been supplementing? can he not have been supplementing? can we not have been supplementing? can you not have been supplementing? can they not have been supplementing?