Conjugaison du verbe anglais
COULD UPSPRING

Verbe irrégulier : upspring - upsprang, upsprung - upsprung

Affirmation

Forme simple	Forme en V-ing
I could upspring you could upspring she could upspring we could upspring you could upspring they could upspring	I could be upspringing you could be upspringing she could be upspringing we could be upspringing you could be upspringing they could be upspringing
Perfect	Perfect en V-ing
I could have upsprung you could have upsprung she could have upsprung we could have upsprung you could have upsprung they could have upsprung	I could have been upspringing you could have been upspringing she could have been upspringing we could have been upspringing you could have been upspringing they could have been upspringing

Négation

Forme simple	Forme en V-ing
I could not upspring you could not upspring she could not upspring we could not upspring you could not upspring they could not upspring	I could not be upspringing you could not be upspringing she could not be upspringing we could not be upspringing you could not be upspringing they could not be upspringing
Perfect	Perfect en V-ing
I could not have upsprung you could not have upsprung she could not have upsprung we could not have upsprung you could not have upsprung they could not have upsprung	I could not have been upspringing you could not have been upspringing she could not have been upspringing we could not have been upspringing you could not have been upspringing they could not have been upspringing

Forme interrogative

Forme simple	Forme en V-ing
could I upspring? could you upspring? could she upspring? could we upspring? could you upspring? could they upspring?	could I be upspringing? could you be upspringing? could she be upspringing? could we be upspringing? could you be upspringing? could they be upspringing?
Perfect	Perfect en V-ing
could I have upsprung? could you have upsprung? could she have upsprung? could we have upsprung? could you have upsprung? could they have upsprung?	could I have been upspringing? could you have been upspringing? could she have been upspringing? could we have been upspringing? could you have been upspringing? could they have been upspringing?

Forme interro-négative

Forme simple	Forme en V-ing
could I not upspring? could you not upspring? could she not upspring? could we not upspring? could you not upspring? could they not upspring?	could I not be upspringing? could you not be upspringing? could she not be upspringing? could we not be upspringing? could you not be upspringing? could they not be upspringing?
Perfect	Perfect en V-ing
could I not have upsprung? could you not have upsprung? could she not have upsprung? could we not have upsprung? could you not have upsprung? could they not have upsprung?	could I not have been upspringing? could you not have been upspringing? could she not have been upspringing? could we not have been upspringing? could you not have been upspringing? could they not have been upspringing?