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
he could tut
we could tut
you could tut
they could tut 	I could be tuting
you could be tuting
he could be tuting
we could be tuting
you could be tuting
they could be tuting	I could have tuted
you could have tuted
he 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
he 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
he 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
he 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
he 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
he 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 he tut?
could we tut?
could you tut?
could they tut? 	could I be tuting?
could you be tuting?
could he be tuting?
could we be tuting?
could you be tuting?
could they be tuting? 	could I have tuted?
could you have tuted?
could he 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 he 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 he 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 he 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 he 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 he have been tuting?
couldn't we have been tuting?
couldn't you have been tuting?
couldn't they have been tuting?