could buck
Verbe régulier : buck - bucked- bucked
Traduction française : donner une ruade - désarçonner 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could buck
you could buck
she could buck
we could buck
you could buck
they could buck 	I could be bucking
you could be bucking
she could be bucking
we could be bucking
you could be bucking
they could be bucking	I could have bucked
you could have bucked
she could have bucked
we could have bucked
you could have bucked
they could have bucked	I could have been bucking
you could have been bucking
she could have been bucking
we could have been bucking
you could have been bucking
they could have been bucking	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could not buck
you could not buck
she could not buck
we could not buck
you could not buck
they could not buck 	I could not be bucking
you could not be bucking
she could not be bucking
we could not be bucking
you could not be bucking
they could not be bucking	I could not have bucked
you could not have bucked
she could not have bucked
we could not have bucked
you could not have bucked
they could not have bucked	I could not have been bucking
you could not have been bucking
she could not have been bucking
we could not have been bucking
you could not have been bucking
they could not have been bucking	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I buck?
could you buck?
could she buck?
could we buck?
could you buck?
could they buck? 	could I be bucking?
could you be bucking?
could she be bucking?
could we be bucking?
could you be bucking?
could they be bucking? 	could I have bucked?
could you have bucked?
could she have bucked?
could we have bucked?
could you have bucked?
could they have bucked? 	could I have been bucking?
could you have been bucking?
could she have been bucking?
could we have been bucking?
could you have been bucking?
could they have been bucking? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I not buck?
could you not buck?
could she not buck?
could we not buck?
could you not buck?
could they not buck? 	could I not be bucking?
could you not be bucking?
could she not be bucking?
could we not be bucking?
could you not be bucking?
could they not be bucking? 	could I not have bucked?
could you not have bucked?
could she not have bucked?
could we not have bucked?
could you not have bucked?
could they not have bucked? 	could I not have been bucking?
could you not have been bucking?
could she not have been bucking?
could we not have been bucking?
could you not have been bucking?
could they not have been bucking?