could upswing
Verbe irrégulier : upswing - upswung- upswung

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could upswing
you could upswing
she could upswing
we could upswing
you could upswing
they could upswing 	I could be upswinging
you could be upswinging
she could be upswinging
we could be upswinging
you could be upswinging
they could be upswinging	I could have upswung
you could have upswung
she could have upswung
we could have upswung
you could have upswung
they could have upswung	I could have been upswinging
you could have been upswinging
she could have been upswinging
we could have been upswinging
you could have been upswinging
they could have been upswinging	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could not upswing
you could not upswing
she could not upswing
we could not upswing
you could not upswing
they could not upswing 	I could not be upswinging
you could not be upswinging
she could not be upswinging
we could not be upswinging
you could not be upswinging
they could not be upswinging	I could not have upswung
you could not have upswung
she could not have upswung
we could not have upswung
you could not have upswung
they could not have upswung	I could not have been upswinging
you could not have been upswinging
she could not have been upswinging
we could not have been upswinging
you could not have been upswinging
they could not have been upswinging	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I upswing?
could you upswing?
could she upswing?
could we upswing?
could you upswing?
could they upswing? 	could I be upswinging?
could you be upswinging?
could she be upswinging?
could we be upswinging?
could you be upswinging?
could they be upswinging? 	could I have upswung?
could you have upswung?
could she have upswung?
could we have upswung?
could you have upswung?
could they have upswung? 	could I have been upswinging?
could you have been upswinging?
could she have been upswinging?
could we have been upswinging?
could you have been upswinging?
could they have been upswinging? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I not upswing?
could you not upswing?
could she not upswing?
could we not upswing?
could you not upswing?
could they not upswing? 	could I not be upswinging?
could you not be upswinging?
could she not be upswinging?
could we not be upswinging?
could you not be upswinging?
could they not be upswinging? 	could I not have upswung?
could you not have upswung?
could she not have upswung?
could we not have upswung?
could you not have upswung?
could they not have upswung? 	could I not have been upswinging?
could you not have been upswinging?
could she not have been upswinging?
could we not have been upswinging?
could you not have been upswinging?
could they not have been upswinging?