could evaluate
Verbo regular: evaluate - evaluated- evaluated

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could evaluate
you could evaluate
she could evaluate
we could evaluate
you could evaluate
they could evaluate 	I could be evaluating
you could be evaluating
she could be evaluating
we could be evaluating
you could be evaluating
they could be evaluating	I could have evaluated
you could have evaluated
she could have evaluated
we could have evaluated
you could have evaluated
they could have evaluated	I could have been evaluating
you could have been evaluating
she could have been evaluating
we could have been evaluating
you could have been evaluating
they could have been evaluating	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't evaluate
you couldn't evaluate
she couldn't evaluate
we couldn't evaluate
you couldn't evaluate
they couldn't evaluate 	I couldn't be evaluating
you couldn't be evaluating
she couldn't be evaluating
we couldn't be evaluating
you couldn't be evaluating
they couldn't be evaluating	I couldn't have evaluated
you couldn't have evaluated
she couldn't have evaluated
we couldn't have evaluated
you couldn't have evaluated
they couldn't have evaluated	I couldn't have been evaluating
you couldn't have been evaluating
she couldn't have been evaluating
we couldn't have been evaluating
you couldn't have been evaluating
they couldn't have been evaluating	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I evaluate?
could you evaluate?
could she evaluate?
could we evaluate?
could you evaluate?
could they evaluate? 	could I be evaluating?
could you be evaluating?
could she be evaluating?
could we be evaluating?
could you be evaluating?
could they be evaluating? 	could I have evaluated?
could you have evaluated?
could she have evaluated?
could we have evaluated?
could you have evaluated?
could they have evaluated? 	could I have been evaluating?
could you have been evaluating?
could she have been evaluating?
could we have been evaluating?
could you have been evaluating?
could they have been evaluating? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I evaluate?
couldn't you evaluate?
couldn't she evaluate?
couldn't we evaluate?
couldn't you evaluate?
couldn't they evaluate? 	couldn't I be evaluating?
couldn't you be evaluating?
couldn't she be evaluating?
couldn't we be evaluating?
couldn't you be evaluating?
couldn't they be evaluating? 	couldn't I have evaluated?
couldn't you have evaluated?
couldn't she have evaluated?
couldn't we have evaluated?
couldn't you have evaluated?
couldn't they have evaluated? 	couldn't I have been evaluating?
couldn't you have been evaluating?
couldn't she have been evaluating?
couldn't we have been evaluating?
couldn't you have been evaluating?
couldn't they have been evaluating?