Conjugación del verbo inglés
COULD RETCH

Verbo regular: retch - retched - retched

Afirmación

Forma simple	Forma con V-ing
I could retch you could retch he could retch we could retch you could retch they could retch	I could be retching you could be retching he could be retching we could be retching you could be retching they could be retching
Perfecto	Perfecto con V-ing
I could have retched you could have retched he could have retched we could have retched you could have retched they could have retched	I could have been retching you could have been retching he could have been retching we could have been retching you could have been retching they could have been retching

Negación

Forma simple	Forma con V-ing
I couldn't retch you couldn't retch he couldn't retch we couldn't retch you couldn't retch they couldn't retch	I couldn't be retching you couldn't be retching he couldn't be retching we couldn't be retching you couldn't be retching they couldn't be retching
Perfecto	Perfecto con V-ing
I couldn't have retched you couldn't have retched he couldn't have retched we couldn't have retched you couldn't have retched they couldn't have retched	I couldn't have been retching you couldn't have been retching he couldn't have been retching we couldn't have been retching you couldn't have been retching they couldn't have been retching

Forma interrogativa

Forma simple	Forma con V-ing
could I retch? could you retch? could he retch? could we retch? could you retch? could they retch?	could I be retching? could you be retching? could he be retching? could we be retching? could you be retching? could they be retching?
Perfecto	Perfecto con V-ing
could I have retched? could you have retched? could he have retched? could we have retched? could you have retched? could they have retched?	could I have been retching? could you have been retching? could he have been retching? could we have been retching? could you have been retching? could they have been retching?

Forma interro-negativa

Forma simple	Forma con V-ing
couldn't I retch? couldn't you retch? couldn't he retch? couldn't we retch? couldn't you retch? couldn't they retch?	couldn't I be retching? couldn't you be retching? couldn't he be retching? couldn't we be retching? couldn't you be retching? couldn't they be retching?
Perfecto	Perfecto con V-ing
couldn't I have retched? couldn't you have retched? couldn't he have retched? couldn't we have retched? couldn't you have retched? couldn't they have retched?	couldn't I have been retching? couldn't you have been retching? couldn't he have been retching? couldn't we have been retching? couldn't you have been retching? couldn't they have been retching?