could wreck
Verbo regular: wreck - wrecked- wrecked

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could wreck
you could wreck
he could wreck
we could wreck
you could wreck
they could wreck 	I could be wrecking
you could be wrecking
he could be wrecking
we could be wrecking
you could be wrecking
they could be wrecking	I could have wrecked
you could have wrecked
he could have wrecked
we could have wrecked
you could have wrecked
they could have wrecked	I could have been wrecking
you could have been wrecking
he could have been wrecking
we could have been wrecking
you could have been wrecking
they could have been wrecking	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't wreck
you couldn't wreck
he couldn't wreck
we couldn't wreck
you couldn't wreck
they couldn't wreck 	I couldn't be wrecking
you couldn't be wrecking
he couldn't be wrecking
we couldn't be wrecking
you couldn't be wrecking
they couldn't be wrecking	I couldn't have wrecked
you couldn't have wrecked
he couldn't have wrecked
we couldn't have wrecked
you couldn't have wrecked
they couldn't have wrecked	I couldn't have been wrecking
you couldn't have been wrecking
he couldn't have been wrecking
we couldn't have been wrecking
you couldn't have been wrecking
they couldn't have been wrecking	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I wreck?
could you wreck?
could he wreck?
could we wreck?
could you wreck?
could they wreck? 	could I be wrecking?
could you be wrecking?
could he be wrecking?
could we be wrecking?
could you be wrecking?
could they be wrecking? 	could I have wrecked?
could you have wrecked?
could he have wrecked?
could we have wrecked?
could you have wrecked?
could they have wrecked? 	could I have been wrecking?
could you have been wrecking?
could he have been wrecking?
could we have been wrecking?
could you have been wrecking?
could they have been wrecking? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I wreck?
couldn't you wreck?
couldn't he wreck?
couldn't we wreck?
couldn't you wreck?
couldn't they wreck? 	couldn't I be wrecking?
couldn't you be wrecking?
couldn't he be wrecking?
couldn't we be wrecking?
couldn't you be wrecking?
couldn't they be wrecking? 	couldn't I have wrecked?
couldn't you have wrecked?
couldn't he have wrecked?
couldn't we have wrecked?
couldn't you have wrecked?
couldn't they have wrecked? 	couldn't I have been wrecking?
couldn't you have been wrecking?
couldn't he have been wrecking?
couldn't we have been wrecking?
couldn't you have been wrecking?
couldn't they have been wrecking?