could construct
Verbo regular: construct - constructed- constructed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could construct
you could construct
she could construct
we could construct
you could construct
they could construct 	I could be constructing
you could be constructing
she could be constructing
we could be constructing
you could be constructing
they could be constructing	I could have constructed
you could have constructed
she could have constructed
we could have constructed
you could have constructed
they could have constructed	I could have been constructing
you could have been constructing
she could have been constructing
we could have been constructing
you could have been constructing
they could have been constructing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not construct
you could not construct
she could not construct
we could not construct
you could not construct
they could not construct 	I could not be constructing
you could not be constructing
she could not be constructing
we could not be constructing
you could not be constructing
they could not be constructing	I could not have constructed
you could not have constructed
she could not have constructed
we could not have constructed
you could not have constructed
they could not have constructed	I could not have been constructing
you could not have been constructing
she could not have been constructing
we could not have been constructing
you could not have been constructing
they could not have been constructing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I construct?
could you construct?
could she construct?
could we construct?
could you construct?
could they construct? 	could I be constructing?
could you be constructing?
could she be constructing?
could we be constructing?
could you be constructing?
could they be constructing? 	could I have constructed?
could you have constructed?
could she have constructed?
could we have constructed?
could you have constructed?
could they have constructed? 	could I have been constructing?
could you have been constructing?
could she have been constructing?
could we have been constructing?
could you have been constructing?
could they have been constructing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not construct?
could you not construct?
could she not construct?
could we not construct?
could you not construct?
could they not construct? 	could I not be constructing?
could you not be constructing?
could she not be constructing?
could we not be constructing?
could you not be constructing?
could they not be constructing? 	could I not have constructed?
could you not have constructed?
could she not have constructed?
could we not have constructed?
could you not have constructed?
could they not have constructed? 	could I not have been constructing?
could you not have been constructing?
could she not have been constructing?
could we not have been constructing?
could you not have been constructing?
could they not have been constructing?