could invite
Verbo regular: invite - invited- invited

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could invite
you could invite
he could invite
we could invite
you could invite
they could invite 	I could be inviting
you could be inviting
he could be inviting
we could be inviting
you could be inviting
they could be inviting	I could have invited
you could have invited
he could have invited
we could have invited
you could have invited
they could have invited	I could have been inviting
you could have been inviting
he could have been inviting
we could have been inviting
you could have been inviting
they could have been inviting	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't invite
you couldn't invite
he couldn't invite
we couldn't invite
you couldn't invite
they couldn't invite 	I couldn't be inviting
you couldn't be inviting
he couldn't be inviting
we couldn't be inviting
you couldn't be inviting
they couldn't be inviting	I couldn't have invited
you couldn't have invited
he couldn't have invited
we couldn't have invited
you couldn't have invited
they couldn't have invited	I couldn't have been inviting
you couldn't have been inviting
he couldn't have been inviting
we couldn't have been inviting
you couldn't have been inviting
they couldn't have been inviting	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I invite?
could you invite?
could he invite?
could we invite?
could you invite?
could they invite? 	could I be inviting?
could you be inviting?
could he be inviting?
could we be inviting?
could you be inviting?
could they be inviting? 	could I have invited?
could you have invited?
could he have invited?
could we have invited?
could you have invited?
could they have invited? 	could I have been inviting?
could you have been inviting?
could he have been inviting?
could we have been inviting?
could you have been inviting?
could they have been inviting? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I invite?
couldn't you invite?
couldn't he invite?
couldn't we invite?
couldn't you invite?
couldn't they invite? 	couldn't I be inviting?
couldn't you be inviting?
couldn't he be inviting?
couldn't we be inviting?
couldn't you be inviting?
couldn't they be inviting? 	couldn't I have invited?
couldn't you have invited?
couldn't he have invited?
couldn't we have invited?
couldn't you have invited?
couldn't they have invited? 	couldn't I have been inviting?
couldn't you have been inviting?
couldn't he have been inviting?
couldn't we have been inviting?
couldn't you have been inviting?
couldn't they have been inviting?