English verb conjugation
CAN XEROX

Regular verb: xerox - xeroxed - xeroxed

Affirmation

Simple form	V-ing form
I can xerox you can xerox he can xerox we can xerox you can xerox they can xerox	I can be xeroxing you can be xeroxing he can be xeroxing we can be xeroxing you can be xeroxing they can be xeroxing
Perfect	V-ing perfect
I can have xeroxed you can have xeroxed he can have xeroxed we can have xeroxed you can have xeroxed they can have xeroxed	I can have been xeroxing you can have been xeroxing he can have been xeroxing we can have been xeroxing you can have been xeroxing they can have been xeroxing

Negation

Simple form	V-ing form
I cannot xerox you cannot xerox he cannot xerox we cannot xerox you cannot xerox they cannot xerox	I cannot be xeroxing you cannot be xeroxing he cannot be xeroxing we cannot be xeroxing you cannot be xeroxing they cannot be xeroxing
Perfect	V-ing perfect
I cannot have xeroxed you cannot have xeroxed he cannot have xeroxed we cannot have xeroxed you cannot have xeroxed they cannot have xeroxed	I cannot have been xeroxing you cannot have been xeroxing he cannot have been xeroxing we cannot have been xeroxing you cannot have been xeroxing they cannot have been xeroxing

Interrogative form

Simple form	V-ing form
can I xerox? can you xerox? can he xerox? can we xerox? can you xerox? can they xerox?	can I be xeroxing? can you be xeroxing? can he be xeroxing? can we be xeroxing? can you be xeroxing? can they be xeroxing?
Perfect	V-ing perfect
can I have xeroxed? can you have xeroxed? can he have xeroxed? can we have xeroxed? can you have xeroxed? can they have xeroxed?	can I have been xeroxing? can you have been xeroxing? can he have been xeroxing? can we have been xeroxing? can you have been xeroxing? can they have been xeroxing?

Interro-negative form

Simple form	V-ing form
can I not xerox? can you not xerox? can he not xerox? can we not xerox? can you not xerox? can they not xerox?	can I not be xeroxing? can you not be xeroxing? can he not be xeroxing? can we not be xeroxing? can you not be xeroxing? can they not be xeroxing?
Perfect	V-ing perfect
can I not have xeroxed? can you not have xeroxed? can he not have xeroxed? can we not have xeroxed? can you not have xeroxed? can they not have xeroxed?	can I not have been xeroxing? can you not have been xeroxing? can he not have been xeroxing? can we not have been xeroxing? can you not have been xeroxing? can they not have been xeroxing?