could attempt
Verbo regular: attempt - attempted- attempted

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could attempt
you could attempt
she could attempt
we could attempt
you could attempt
they could attempt 	I could be attempting
you could be attempting
she could be attempting
we could be attempting
you could be attempting
they could be attempting	I could have attempted
you could have attempted
she could have attempted
we could have attempted
you could have attempted
they could have attempted	I could have been attempting
you could have been attempting
she could have been attempting
we could have been attempting
you could have been attempting
they could have been attempting	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not attempt
you could not attempt
she could not attempt
we could not attempt
you could not attempt
they could not attempt 	I could not be attempting
you could not be attempting
she could not be attempting
we could not be attempting
you could not be attempting
they could not be attempting	I could not have attempted
you could not have attempted
she could not have attempted
we could not have attempted
you could not have attempted
they could not have attempted	I could not have been attempting
you could not have been attempting
she could not have been attempting
we could not have been attempting
you could not have been attempting
they could not have been attempting	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I attempt?
could you attempt?
could she attempt?
could we attempt?
could you attempt?
could they attempt? 	could I be attempting?
could you be attempting?
could she be attempting?
could we be attempting?
could you be attempting?
could they be attempting? 	could I have attempted?
could you have attempted?
could she have attempted?
could we have attempted?
could you have attempted?
could they have attempted? 	could I have been attempting?
could you have been attempting?
could she have been attempting?
could we have been attempting?
could you have been attempting?
could they have been attempting? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not attempt?
could you not attempt?
could she not attempt?
could we not attempt?
could you not attempt?
could they not attempt? 	could I not be attempting?
could you not be attempting?
could she not be attempting?
could we not be attempting?
could you not be attempting?
could they not be attempting? 	could I not have attempted?
could you not have attempted?
could she not have attempted?
could we not have attempted?
could you not have attempted?
could they not have attempted? 	could I not have been attempting?
could you not have been attempting?
could she not have been attempting?
could we not have been attempting?
could you not have been attempting?
could they not have been attempting?