could engineer
Verbo regolare: engineer - engineered- engineered

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could engineer
you could engineer
he could engineer
we could engineer
you could engineer
they could engineer 	I could be engineering
you could be engineering
he could be engineering
we could be engineering
you could be engineering
they could be engineering	I could have engineered
you could have engineered
he could have engineered
we could have engineered
you could have engineered
they could have engineered	I could have been engineering
you could have been engineering
he could have been engineering
we could have been engineering
you could have been engineering
they could have been engineering	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could not engineer
you could not engineer
he could not engineer
we could not engineer
you could not engineer
they could not engineer 	I could not be engineering
you could not be engineering
he could not be engineering
we could not be engineering
you could not be engineering
they could not be engineering	I could not have engineered
you could not have engineered
he could not have engineered
we could not have engineered
you could not have engineered
they could not have engineered	I could not have been engineering
you could not have been engineering
he could not have been engineering
we could not have been engineering
you could not have been engineering
they could not have been engineering	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I engineer?
could you engineer?
could he engineer?
could we engineer?
could you engineer?
could they engineer? 	could I be engineering?
could you be engineering?
could he be engineering?
could we be engineering?
could you be engineering?
could they be engineering? 	could I have engineered?
could you have engineered?
could he have engineered?
could we have engineered?
could you have engineered?
could they have engineered? 	could I have been engineering?
could you have been engineering?
could he have been engineering?
could we have been engineering?
could you have been engineering?
could they have been engineering? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I not engineer?
could you not engineer?
could he not engineer?
could we not engineer?
could you not engineer?
could they not engineer? 	could I not be engineering?
could you not be engineering?
could he not be engineering?
could we not be engineering?
could you not be engineering?
could they not be engineering? 	could I not have engineered?
could you not have engineered?
could he not have engineered?
could we not have engineered?
could you not have engineered?
could they not have engineered? 	could I not have been engineering?
could you not have been engineering?
could he not have been engineering?
could we not have been engineering?
could you not have been engineering?
could they not have been engineering?