could twirl
Verbo regular: twirl - twirled- twirled

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could twirl
you could twirl
he could twirl
we could twirl
you could twirl
they could twirl 	I could be twirling
you could be twirling
he could be twirling
we could be twirling
you could be twirling
they could be twirling	I could have twirled
you could have twirled
he could have twirled
we could have twirled
you could have twirled
they could have twirled	I could have been twirling
you could have been twirling
he could have been twirling
we could have been twirling
you could have been twirling
they could have been twirling	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't twirl
you couldn't twirl
he couldn't twirl
we couldn't twirl
you couldn't twirl
they couldn't twirl 	I couldn't be twirling
you couldn't be twirling
he couldn't be twirling
we couldn't be twirling
you couldn't be twirling
they couldn't be twirling	I couldn't have twirled
you couldn't have twirled
he couldn't have twirled
we couldn't have twirled
you couldn't have twirled
they couldn't have twirled	I couldn't have been twirling
you couldn't have been twirling
he couldn't have been twirling
we couldn't have been twirling
you couldn't have been twirling
they couldn't have been twirling	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I twirl?
could you twirl?
could he twirl?
could we twirl?
could you twirl?
could they twirl? 	could I be twirling?
could you be twirling?
could he be twirling?
could we be twirling?
could you be twirling?
could they be twirling? 	could I have twirled?
could you have twirled?
could he have twirled?
could we have twirled?
could you have twirled?
could they have twirled? 	could I have been twirling?
could you have been twirling?
could he have been twirling?
could we have been twirling?
could you have been twirling?
could they have been twirling? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I twirl?
couldn't you twirl?
couldn't he twirl?
couldn't we twirl?
couldn't you twirl?
couldn't they twirl? 	couldn't I be twirling?
couldn't you be twirling?
couldn't he be twirling?
couldn't we be twirling?
couldn't you be twirling?
couldn't they be twirling? 	couldn't I have twirled?
couldn't you have twirled?
couldn't he have twirled?
couldn't we have twirled?
couldn't you have twirled?
couldn't they have twirled? 	couldn't I have been twirling?
couldn't you have been twirling?
couldn't he have been twirling?
couldn't we have been twirling?
couldn't you have been twirling?
couldn't they have been twirling?