could counterweight
Verbo regular: counterweight - counterweighted- counterweighted

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could counterweight
you could counterweight
he could counterweight
we could counterweight
you could counterweight
they could counterweight 	I could be counterweighting
you could be counterweighting
he could be counterweighting
we could be counterweighting
you could be counterweighting
they could be counterweighting	I could have counterweighted
you could have counterweighted
he could have counterweighted
we could have counterweighted
you could have counterweighted
they could have counterweighted	I could have been counterweighting
you could have been counterweighting
he could have been counterweighting
we could have been counterweighting
you could have been counterweighting
they could have been counterweighting	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not counterweight
you could not counterweight
he could not counterweight
we could not counterweight
you could not counterweight
they could not counterweight 	I could not be counterweighting
you could not be counterweighting
he could not be counterweighting
we could not be counterweighting
you could not be counterweighting
they could not be counterweighting	I could not have counterweighted
you could not have counterweighted
he could not have counterweighted
we could not have counterweighted
you could not have counterweighted
they could not have counterweighted	I could not have been counterweighting
you could not have been counterweighting
he could not have been counterweighting
we could not have been counterweighting
you could not have been counterweighting
they could not have been counterweighting	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I counterweight?
could you counterweight?
could he counterweight?
could we counterweight?
could you counterweight?
could they counterweight? 	could I be counterweighting?
could you be counterweighting?
could he be counterweighting?
could we be counterweighting?
could you be counterweighting?
could they be counterweighting? 	could I have counterweighted?
could you have counterweighted?
could he have counterweighted?
could we have counterweighted?
could you have counterweighted?
could they have counterweighted? 	could I have been counterweighting?
could you have been counterweighting?
could he have been counterweighting?
could we have been counterweighting?
could you have been counterweighting?
could they have been counterweighting? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not counterweight?
could you not counterweight?
could he not counterweight?
could we not counterweight?
could you not counterweight?
could they not counterweight? 	could I not be counterweighting?
could you not be counterweighting?
could he not be counterweighting?
could we not be counterweighting?
could you not be counterweighting?
could they not be counterweighting? 	could I not have counterweighted?
could you not have counterweighted?
could he not have counterweighted?
could we not have counterweighted?
could you not have counterweighted?
could they not have counterweighted? 	could I not have been counterweighting?
could you not have been counterweighting?
could he not have been counterweighting?
could we not have been counterweighting?
could you not have been counterweighting?
could they not have been counterweighting?