could coast
Verbo regular: coast - coasted- coasted

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could coast
you could coast
she could coast
we could coast
you could coast
they could coast 	I could be coasting
you could be coasting
she could be coasting
we could be coasting
you could be coasting
they could be coasting	I could have coasted
you could have coasted
she could have coasted
we could have coasted
you could have coasted
they could have coasted	I could have been coasting
you could have been coasting
she could have been coasting
we could have been coasting
you could have been coasting
they could have been coasting	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't coast
you couldn't coast
she couldn't coast
we couldn't coast
you couldn't coast
they couldn't coast 	I couldn't be coasting
you couldn't be coasting
she couldn't be coasting
we couldn't be coasting
you couldn't be coasting
they couldn't be coasting	I couldn't have coasted
you couldn't have coasted
she couldn't have coasted
we couldn't have coasted
you couldn't have coasted
they couldn't have coasted	I couldn't have been coasting
you couldn't have been coasting
she couldn't have been coasting
we couldn't have been coasting
you couldn't have been coasting
they couldn't have been coasting	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I coast?
could you coast?
could she coast?
could we coast?
could you coast?
could they coast? 	could I be coasting?
could you be coasting?
could she be coasting?
could we be coasting?
could you be coasting?
could they be coasting? 	could I have coasted?
could you have coasted?
could she have coasted?
could we have coasted?
could you have coasted?
could they have coasted? 	could I have been coasting?
could you have been coasting?
could she have been coasting?
could we have been coasting?
could you have been coasting?
could they have been coasting? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I coast?
couldn't you coast?
couldn't she coast?
couldn't we coast?
couldn't you coast?
couldn't they coast? 	couldn't I be coasting?
couldn't you be coasting?
couldn't she be coasting?
couldn't we be coasting?
couldn't you be coasting?
couldn't they be coasting? 	couldn't I have coasted?
couldn't you have coasted?
couldn't she have coasted?
couldn't we have coasted?
couldn't you have coasted?
couldn't they have coasted? 	couldn't I have been coasting?
couldn't you have been coasting?
couldn't she have been coasting?
couldn't we have been coasting?
couldn't you have been coasting?
couldn't they have been coasting?