could tuck
Verbo regular: tuck - tucked- tucked

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could tuck
you could tuck
she could tuck
we could tuck
you could tuck
they could tuck 	I could be tucking
you could be tucking
she could be tucking
we could be tucking
you could be tucking
they could be tucking	I could have tucked
you could have tucked
she could have tucked
we could have tucked
you could have tucked
they could have tucked	I could have been tucking
you could have been tucking
she could have been tucking
we could have been tucking
you could have been tucking
they could have been tucking	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not tuck
you could not tuck
she could not tuck
we could not tuck
you could not tuck
they could not tuck 	I could not be tucking
you could not be tucking
she could not be tucking
we could not be tucking
you could not be tucking
they could not be tucking	I could not have tucked
you could not have tucked
she could not have tucked
we could not have tucked
you could not have tucked
they could not have tucked	I could not have been tucking
you could not have been tucking
she could not have been tucking
we could not have been tucking
you could not have been tucking
they could not have been tucking	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I tuck?
could you tuck?
could she tuck?
could we tuck?
could you tuck?
could they tuck? 	could I be tucking?
could you be tucking?
could she be tucking?
could we be tucking?
could you be tucking?
could they be tucking? 	could I have tucked?
could you have tucked?
could she have tucked?
could we have tucked?
could you have tucked?
could they have tucked? 	could I have been tucking?
could you have been tucking?
could she have been tucking?
could we have been tucking?
could you have been tucking?
could they have been tucking? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not tuck?
could you not tuck?
could she not tuck?
could we not tuck?
could you not tuck?
could they not tuck? 	could I not be tucking?
could you not be tucking?
could she not be tucking?
could we not be tucking?
could you not be tucking?
could they not be tucking? 	could I not have tucked?
could you not have tucked?
could she not have tucked?
could we not have tucked?
could you not have tucked?
could they not have tucked? 	could I not have been tucking?
could you not have been tucking?
could she not have been tucking?
could we not have been tucking?
could you not have been tucking?
could they not have been tucking?