could triffle
Verbo regular: triffle - triffled- triffled

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could triffle
you could triffle
she could triffle
we could triffle
you could triffle
they could triffle 	I could be triffling
you could be triffling
she could be triffling
we could be triffling
you could be triffling
they could be triffling	I could have triffled
you could have triffled
she could have triffled
we could have triffled
you could have triffled
they could have triffled	I could have been triffling
you could have been triffling
she could have been triffling
we could have been triffling
you could have been triffling
they could have been triffling	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not triffle
you could not triffle
she could not triffle
we could not triffle
you could not triffle
they could not triffle 	I could not be triffling
you could not be triffling
she could not be triffling
we could not be triffling
you could not be triffling
they could not be triffling	I could not have triffled
you could not have triffled
she could not have triffled
we could not have triffled
you could not have triffled
they could not have triffled	I could not have been triffling
you could not have been triffling
she could not have been triffling
we could not have been triffling
you could not have been triffling
they could not have been triffling	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I triffle?
could you triffle?
could she triffle?
could we triffle?
could you triffle?
could they triffle? 	could I be triffling?
could you be triffling?
could she be triffling?
could we be triffling?
could you be triffling?
could they be triffling? 	could I have triffled?
could you have triffled?
could she have triffled?
could we have triffled?
could you have triffled?
could they have triffled? 	could I have been triffling?
could you have been triffling?
could she have been triffling?
could we have been triffling?
could you have been triffling?
could they have been triffling? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not triffle?
could you not triffle?
could she not triffle?
could we not triffle?
could you not triffle?
could they not triffle? 	could I not be triffling?
could you not be triffling?
could she not be triffling?
could we not be triffling?
could you not be triffling?
could they not be triffling? 	could I not have triffled?
could you not have triffled?
could she not have triffled?
could we not have triffled?
could you not have triffled?
could they not have triffled? 	could I not have been triffling?
could you not have been triffling?
could she not have been triffling?
could we not have been triffling?
could you not have been triffling?
could they not have been triffling?