could heat-treat
Verbo regular: heat-treat - heat-treated- heat-treated

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could heat-treat
you could heat-treat
she could heat-treat
we could heat-treat
you could heat-treat
they could heat-treat 	I could be heat-treating
you could be heat-treating
she could be heat-treating
we could be heat-treating
you could be heat-treating
they could be heat-treating	I could have heat-treated
you could have heat-treated
she could have heat-treated
we could have heat-treated
you could have heat-treated
they could have heat-treated	I could have been heat-treating
you could have been heat-treating
she could have been heat-treating
we could have been heat-treating
you could have been heat-treating
they could have been heat-treating	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not heat-treat
you could not heat-treat
she could not heat-treat
we could not heat-treat
you could not heat-treat
they could not heat-treat 	I could not be heat-treating
you could not be heat-treating
she could not be heat-treating
we could not be heat-treating
you could not be heat-treating
they could not be heat-treating	I could not have heat-treated
you could not have heat-treated
she could not have heat-treated
we could not have heat-treated
you could not have heat-treated
they could not have heat-treated	I could not have been heat-treating
you could not have been heat-treating
she could not have been heat-treating
we could not have been heat-treating
you could not have been heat-treating
they could not have been heat-treating	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I heat-treat?
could you heat-treat?
could she heat-treat?
could we heat-treat?
could you heat-treat?
could they heat-treat? 	could I be heat-treating?
could you be heat-treating?
could she be heat-treating?
could we be heat-treating?
could you be heat-treating?
could they be heat-treating? 	could I have heat-treated?
could you have heat-treated?
could she have heat-treated?
could we have heat-treated?
could you have heat-treated?
could they have heat-treated? 	could I have been heat-treating?
could you have been heat-treating?
could she have been heat-treating?
could we have been heat-treating?
could you have been heat-treating?
could they have been heat-treating? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not heat-treat?
could you not heat-treat?
could she not heat-treat?
could we not heat-treat?
could you not heat-treat?
could they not heat-treat? 	could I not be heat-treating?
could you not be heat-treating?
could she not be heat-treating?
could we not be heat-treating?
could you not be heat-treating?
could they not be heat-treating? 	could I not have heat-treated?
could you not have heat-treated?
could she not have heat-treated?
could we not have heat-treated?
could you not have heat-treated?
could they not have heat-treated? 	could I not have been heat-treating?
could you not have been heat-treating?
could she not have been heat-treating?
could we not have been heat-treating?
could you not have been heat-treating?
could they not have been heat-treating?