could intercalate
Verbo regular: intercalate - intercalated- intercalated

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could intercalate
you could intercalate
he could intercalate
we could intercalate
you could intercalate
they could intercalate 	I could be intercalating
you could be intercalating
he could be intercalating
we could be intercalating
you could be intercalating
they could be intercalating	I could have intercalated
you could have intercalated
he could have intercalated
we could have intercalated
you could have intercalated
they could have intercalated	I could have been intercalating
you could have been intercalating
he could have been intercalating
we could have been intercalating
you could have been intercalating
they could have been intercalating	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not intercalate
you could not intercalate
he could not intercalate
we could not intercalate
you could not intercalate
they could not intercalate 	I could not be intercalating
you could not be intercalating
he could not be intercalating
we could not be intercalating
you could not be intercalating
they could not be intercalating	I could not have intercalated
you could not have intercalated
he could not have intercalated
we could not have intercalated
you could not have intercalated
they could not have intercalated	I could not have been intercalating
you could not have been intercalating
he could not have been intercalating
we could not have been intercalating
you could not have been intercalating
they could not have been intercalating	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I intercalate?
could you intercalate?
could he intercalate?
could we intercalate?
could you intercalate?
could they intercalate? 	could I be intercalating?
could you be intercalating?
could he be intercalating?
could we be intercalating?
could you be intercalating?
could they be intercalating? 	could I have intercalated?
could you have intercalated?
could he have intercalated?
could we have intercalated?
could you have intercalated?
could they have intercalated? 	could I have been intercalating?
could you have been intercalating?
could he have been intercalating?
could we have been intercalating?
could you have been intercalating?
could they have been intercalating? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not intercalate?
could you not intercalate?
could he not intercalate?
could we not intercalate?
could you not intercalate?
could they not intercalate? 	could I not be intercalating?
could you not be intercalating?
could he not be intercalating?
could we not be intercalating?
could you not be intercalating?
could they not be intercalating? 	could I not have intercalated?
could you not have intercalated?
could he not have intercalated?
could we not have intercalated?
could you not have intercalated?
could they not have intercalated? 	could I not have been intercalating?
could you not have been intercalating?
could he not have been intercalating?
could we not have been intercalating?
could you not have been intercalating?
could they not have been intercalating?