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

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com 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	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't heat-treat
you couldn't heat-treat
she couldn't heat-treat
we couldn't heat-treat
you couldn't heat-treat
they couldn't heat-treat 	I couldn't be heat-treating
you couldn't be heat-treating
she couldn't be heat-treating
we couldn't be heat-treating
you couldn't be heat-treating
they couldn't be heat-treating	I couldn't have heat-treated
you couldn't have heat-treated
she couldn't have heat-treated
we couldn't have heat-treated
you couldn't have heat-treated
they couldn't have heat-treated	I couldn't have been heat-treating
you couldn't have been heat-treating
she couldn't have been heat-treating
we couldn't have been heat-treating
you couldn't have been heat-treating
they couldn't have been heat-treating	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com 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-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I heat-treat?
couldn't you heat-treat?
couldn't she heat-treat?
couldn't we heat-treat?
couldn't you heat-treat?
couldn't they heat-treat? 	couldn't I be heat-treating?
couldn't you be heat-treating?
couldn't she be heat-treating?
couldn't we be heat-treating?
couldn't you be heat-treating?
couldn't they be heat-treating? 	couldn't I have heat-treated?
couldn't you have heat-treated?
couldn't she have heat-treated?
couldn't we have heat-treated?
couldn't you have heat-treated?
couldn't they have heat-treated? 	couldn't I have been heat-treating?
couldn't you have been heat-treating?
couldn't she have been heat-treating?
couldn't we have been heat-treating?
couldn't you have been heat-treating?
couldn't they have been heat-treating?