could buck
Verbo regolare: buck - bucked- bucked

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could buck
you could buck
he could buck
we could buck
you could buck
they could buck 	I could be bucking
you could be bucking
he could be bucking
we could be bucking
you could be bucking
they could be bucking	I could have bucked
you could have bucked
he 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
he could have been bucking
we could have been bucking
you could have been bucking
they could have been bucking	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I couldn't buck
you couldn't buck
he couldn't buck
we couldn't buck
you couldn't buck
they couldn't buck 	I couldn't be bucking
you couldn't be bucking
he couldn't be bucking
we couldn't be bucking
you couldn't be bucking
they couldn't be bucking	I couldn't have bucked
you couldn't have bucked
he couldn't have bucked
we couldn't have bucked
you couldn't have bucked
they couldn't have bucked	I couldn't have been bucking
you couldn't have been bucking
he couldn't have been bucking
we couldn't have been bucking
you couldn't have been bucking
they couldn't have been bucking	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I buck?
could you buck?
could he buck?
could we buck?
could you buck?
could they buck? 	could I be bucking?
could you be bucking?
could he be bucking?
could we be bucking?
could you be bucking?
could they be bucking? 	could I have bucked?
could you have bucked?
could he 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 he have been bucking?
could we have been bucking?
could you have been bucking?
could they have been bucking? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
couldn't I buck?
couldn't you buck?
couldn't he buck?
couldn't we buck?
couldn't you buck?
couldn't they buck? 	couldn't I be bucking?
couldn't you be bucking?
couldn't he be bucking?
couldn't we be bucking?
couldn't you be bucking?
couldn't they be bucking? 	couldn't I have bucked?
couldn't you have bucked?
couldn't he have bucked?
couldn't we have bucked?
couldn't you have bucked?
couldn't they have bucked? 	couldn't I have been bucking?
couldn't you have been bucking?
couldn't he have been bucking?
couldn't we have been bucking?
couldn't you have been bucking?
couldn't they have been bucking?