English verb conjugation
CAN UPSTAGE

Regular verb: upstage - upstaged - upstaged

Affirmation

Simple form	V-ing form
I can upstage you can upstage he can upstage we can upstage you can upstage they can upstage	I can be upstaging you can be upstaging he can be upstaging we can be upstaging you can be upstaging they can be upstaging
Perfect	V-ing perfect
I can have upstaged you can have upstaged he can have upstaged we can have upstaged you can have upstaged they can have upstaged	I can have been upstaging you can have been upstaging he can have been upstaging we can have been upstaging you can have been upstaging they can have been upstaging

Negation

Simple form	V-ing form
I cannot upstage you cannot upstage he cannot upstage we cannot upstage you cannot upstage they cannot upstage	I cannot be upstaging you cannot be upstaging he cannot be upstaging we cannot be upstaging you cannot be upstaging they cannot be upstaging
Perfect	V-ing perfect
I cannot have upstaged you cannot have upstaged he cannot have upstaged we cannot have upstaged you cannot have upstaged they cannot have upstaged	I cannot have been upstaging you cannot have been upstaging he cannot have been upstaging we cannot have been upstaging you cannot have been upstaging they cannot have been upstaging

Interrogative form

Simple form	V-ing form
can I upstage? can you upstage? can he upstage? can we upstage? can you upstage? can they upstage?	can I be upstaging? can you be upstaging? can he be upstaging? can we be upstaging? can you be upstaging? can they be upstaging?
Perfect	V-ing perfect
can I have upstaged? can you have upstaged? can he have upstaged? can we have upstaged? can you have upstaged? can they have upstaged?	can I have been upstaging? can you have been upstaging? can he have been upstaging? can we have been upstaging? can you have been upstaging? can they have been upstaging?

Interro-negative form

Simple form	V-ing form
can I not upstage? can you not upstage? can he not upstage? can we not upstage? can you not upstage? can they not upstage?	can I not be upstaging? can you not be upstaging? can he not be upstaging? can we not be upstaging? can you not be upstaging? can they not be upstaging?
Perfect	V-ing perfect
can I not have upstaged? can you not have upstaged? can he not have upstaged? can we not have upstaged? can you not have upstaged? can they not have upstaged?	can I not have been upstaging? can you not have been upstaging? can he not have been upstaging? can we not have been upstaging? can you not have been upstaging? can they not have been upstaging?