could tut
Verbo regular: tut - tuted- tuted

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could tut
you could tut
she could tut
we could tut
you could tut
they could tut 	I could be tuting
you could be tuting
she could be tuting
we could be tuting
you could be tuting
they could be tuting	I could have tuted
you could have tuted
she could have tuted
we could have tuted
you could have tuted
they could have tuted	I could have been tuting
you could have been tuting
she could have been tuting
we could have been tuting
you could have been tuting
they could have been tuting	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't tut
you couldn't tut
she couldn't tut
we couldn't tut
you couldn't tut
they couldn't tut 	I couldn't be tuting
you couldn't be tuting
she couldn't be tuting
we couldn't be tuting
you couldn't be tuting
they couldn't be tuting	I couldn't have tuted
you couldn't have tuted
she couldn't have tuted
we couldn't have tuted
you couldn't have tuted
they couldn't have tuted	I couldn't have been tuting
you couldn't have been tuting
she couldn't have been tuting
we couldn't have been tuting
you couldn't have been tuting
they couldn't have been tuting	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I tut?
could you tut?
could she tut?
could we tut?
could you tut?
could they tut? 	could I be tuting?
could you be tuting?
could she be tuting?
could we be tuting?
could you be tuting?
could they be tuting? 	could I have tuted?
could you have tuted?
could she have tuted?
could we have tuted?
could you have tuted?
could they have tuted? 	could I have been tuting?
could you have been tuting?
could she have been tuting?
could we have been tuting?
could you have been tuting?
could they have been tuting? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I tut?
couldn't you tut?
couldn't she tut?
couldn't we tut?
couldn't you tut?
couldn't they tut? 	couldn't I be tuting?
couldn't you be tuting?
couldn't she be tuting?
couldn't we be tuting?
couldn't you be tuting?
couldn't they be tuting? 	couldn't I have tuted?
couldn't you have tuted?
couldn't she have tuted?
couldn't we have tuted?
couldn't you have tuted?
couldn't they have tuted? 	couldn't I have been tuting?
couldn't you have been tuting?
couldn't she have been tuting?
couldn't we have been tuting?
couldn't you have been tuting?
couldn't they have been tuting?