could infiltrate
Verbo regular: infiltrate - infiltrated- infiltrated

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could infiltrate
you could infiltrate
he could infiltrate
we could infiltrate
you could infiltrate
they could infiltrate 	I could be infiltrating
you could be infiltrating
he could be infiltrating
we could be infiltrating
you could be infiltrating
they could be infiltrating	I could have infiltrated
you could have infiltrated
he could have infiltrated
we could have infiltrated
you could have infiltrated
they could have infiltrated	I could have been infiltrating
you could have been infiltrating
he could have been infiltrating
we could have been infiltrating
you could have been infiltrating
they could have been infiltrating	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't infiltrate
you couldn't infiltrate
he couldn't infiltrate
we couldn't infiltrate
you couldn't infiltrate
they couldn't infiltrate 	I couldn't be infiltrating
you couldn't be infiltrating
he couldn't be infiltrating
we couldn't be infiltrating
you couldn't be infiltrating
they couldn't be infiltrating	I couldn't have infiltrated
you couldn't have infiltrated
he couldn't have infiltrated
we couldn't have infiltrated
you couldn't have infiltrated
they couldn't have infiltrated	I couldn't have been infiltrating
you couldn't have been infiltrating
he couldn't have been infiltrating
we couldn't have been infiltrating
you couldn't have been infiltrating
they couldn't have been infiltrating	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I infiltrate?
could you infiltrate?
could he infiltrate?
could we infiltrate?
could you infiltrate?
could they infiltrate? 	could I be infiltrating?
could you be infiltrating?
could he be infiltrating?
could we be infiltrating?
could you be infiltrating?
could they be infiltrating? 	could I have infiltrated?
could you have infiltrated?
could he have infiltrated?
could we have infiltrated?
could you have infiltrated?
could they have infiltrated? 	could I have been infiltrating?
could you have been infiltrating?
could he have been infiltrating?
could we have been infiltrating?
could you have been infiltrating?
could they have been infiltrating? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I infiltrate?
couldn't you infiltrate?
couldn't he infiltrate?
couldn't we infiltrate?
couldn't you infiltrate?
couldn't they infiltrate? 	couldn't I be infiltrating?
couldn't you be infiltrating?
couldn't he be infiltrating?
couldn't we be infiltrating?
couldn't you be infiltrating?
couldn't they be infiltrating? 	couldn't I have infiltrated?
couldn't you have infiltrated?
couldn't he have infiltrated?
couldn't we have infiltrated?
couldn't you have infiltrated?
couldn't they have infiltrated? 	couldn't I have been infiltrating?
couldn't you have been infiltrating?
couldn't he have been infiltrating?
couldn't we have been infiltrating?
couldn't you have been infiltrating?
couldn't they have been infiltrating?