could bobsled
Verbo regular: bobsled - bobsleded- bobsleded

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could bobsled
you could bobsled
she could bobsled
we could bobsled
you could bobsled
they could bobsled 	I could be bobsleding
you could be bobsleding
she could be bobsleding
we could be bobsleding
you could be bobsleding
they could be bobsleding	I could have bobsleded
you could have bobsleded
she could have bobsleded
we could have bobsleded
you could have bobsleded
they could have bobsleded	I could have been bobsleding
you could have been bobsleding
she could have been bobsleding
we could have been bobsleding
you could have been bobsleding
they could have been bobsleding	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't bobsled
you couldn't bobsled
she couldn't bobsled
we couldn't bobsled
you couldn't bobsled
they couldn't bobsled 	I couldn't be bobsleding
you couldn't be bobsleding
she couldn't be bobsleding
we couldn't be bobsleding
you couldn't be bobsleding
they couldn't be bobsleding	I couldn't have bobsleded
you couldn't have bobsleded
she couldn't have bobsleded
we couldn't have bobsleded
you couldn't have bobsleded
they couldn't have bobsleded	I couldn't have been bobsleding
you couldn't have been bobsleding
she couldn't have been bobsleding
we couldn't have been bobsleding
you couldn't have been bobsleding
they couldn't have been bobsleding	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I bobsled?
could you bobsled?
could she bobsled?
could we bobsled?
could you bobsled?
could they bobsled? 	could I be bobsleding?
could you be bobsleding?
could she be bobsleding?
could we be bobsleding?
could you be bobsleding?
could they be bobsleding? 	could I have bobsleded?
could you have bobsleded?
could she have bobsleded?
could we have bobsleded?
could you have bobsleded?
could they have bobsleded? 	could I have been bobsleding?
could you have been bobsleding?
could she have been bobsleding?
could we have been bobsleding?
could you have been bobsleding?
could they have been bobsleding? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I bobsled?
couldn't you bobsled?
couldn't she bobsled?
couldn't we bobsled?
couldn't you bobsled?
couldn't they bobsled? 	couldn't I be bobsleding?
couldn't you be bobsleding?
couldn't she be bobsleding?
couldn't we be bobsleding?
couldn't you be bobsleding?
couldn't they be bobsleding? 	couldn't I have bobsleded?
couldn't you have bobsleded?
couldn't she have bobsleded?
couldn't we have bobsleded?
couldn't you have bobsleded?
couldn't they have bobsleded? 	couldn't I have been bobsleding?
couldn't you have been bobsleding?
couldn't she have been bobsleding?
couldn't we have been bobsleding?
couldn't you have been bobsleding?
couldn't they have been bobsleding?