could launch
Verbo regular: launch - launched- launched

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could launch
you could launch
she could launch
we could launch
you could launch
they could launch 	I could be launching
you could be launching
she could be launching
we could be launching
you could be launching
they could be launching	I could have launched
you could have launched
she could have launched
we could have launched
you could have launched
they could have launched	I could have been launching
you could have been launching
she could have been launching
we could have been launching
you could have been launching
they could have been launching	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't launch
you couldn't launch
she couldn't launch
we couldn't launch
you couldn't launch
they couldn't launch 	I couldn't be launching
you couldn't be launching
she couldn't be launching
we couldn't be launching
you couldn't be launching
they couldn't be launching	I couldn't have launched
you couldn't have launched
she couldn't have launched
we couldn't have launched
you couldn't have launched
they couldn't have launched	I couldn't have been launching
you couldn't have been launching
she couldn't have been launching
we couldn't have been launching
you couldn't have been launching
they couldn't have been launching	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I launch?
could you launch?
could she launch?
could we launch?
could you launch?
could they launch? 	could I be launching?
could you be launching?
could she be launching?
could we be launching?
could you be launching?
could they be launching? 	could I have launched?
could you have launched?
could she have launched?
could we have launched?
could you have launched?
could they have launched? 	could I have been launching?
could you have been launching?
could she have been launching?
could we have been launching?
could you have been launching?
could they have been launching? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I launch?
couldn't you launch?
couldn't she launch?
couldn't we launch?
couldn't you launch?
couldn't they launch? 	couldn't I be launching?
couldn't you be launching?
couldn't she be launching?
couldn't we be launching?
couldn't you be launching?
couldn't they be launching? 	couldn't I have launched?
couldn't you have launched?
couldn't she have launched?
couldn't we have launched?
couldn't you have launched?
couldn't they have launched? 	couldn't I have been launching?
couldn't you have been launching?
couldn't she have been launching?
couldn't we have been launching?
couldn't you have been launching?
couldn't they have been launching?