could impress
Verbo regular: impress - impressed- impressed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could impress
you could impress
he could impress
we could impress
you could impress
they could impress 	I could be impressing
you could be impressing
he could be impressing
we could be impressing
you could be impressing
they could be impressing	I could have impressed
you could have impressed
he could have impressed
we could have impressed
you could have impressed
they could have impressed	I could have been impressing
you could have been impressing
he could have been impressing
we could have been impressing
you could have been impressing
they could have been impressing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't impress
you couldn't impress
he couldn't impress
we couldn't impress
you couldn't impress
they couldn't impress 	I couldn't be impressing
you couldn't be impressing
he couldn't be impressing
we couldn't be impressing
you couldn't be impressing
they couldn't be impressing	I couldn't have impressed
you couldn't have impressed
he couldn't have impressed
we couldn't have impressed
you couldn't have impressed
they couldn't have impressed	I couldn't have been impressing
you couldn't have been impressing
he couldn't have been impressing
we couldn't have been impressing
you couldn't have been impressing
they couldn't have been impressing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I impress?
could you impress?
could he impress?
could we impress?
could you impress?
could they impress? 	could I be impressing?
could you be impressing?
could he be impressing?
could we be impressing?
could you be impressing?
could they be impressing? 	could I have impressed?
could you have impressed?
could he have impressed?
could we have impressed?
could you have impressed?
could they have impressed? 	could I have been impressing?
could you have been impressing?
could he have been impressing?
could we have been impressing?
could you have been impressing?
could they have been impressing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I impress?
couldn't you impress?
couldn't he impress?
couldn't we impress?
couldn't you impress?
couldn't they impress? 	couldn't I be impressing?
couldn't you be impressing?
couldn't he be impressing?
couldn't we be impressing?
couldn't you be impressing?
couldn't they be impressing? 	couldn't I have impressed?
couldn't you have impressed?
couldn't he have impressed?
couldn't we have impressed?
couldn't you have impressed?
couldn't they have impressed? 	couldn't I have been impressing?
couldn't you have been impressing?
couldn't he have been impressing?
couldn't we have been impressing?
couldn't you have been impressing?
couldn't they have been impressing?