English verb conjugation
COULD LETCH

Regular verb: letch - letched - letched

Affirmation

Simple form	V-ing form
I could letch you could letch he could letch we could letch you could letch they could letch	I could be letching you could be letching he could be letching we could be letching you could be letching they could be letching
Perfect	V-ing perfect
I could have letched you could have letched he could have letched we could have letched you could have letched they could have letched	I could have been letching you could have been letching he could have been letching we could have been letching you could have been letching they could have been letching

Negation

Simple form	V-ing form
I could not letch you could not letch he could not letch we could not letch you could not letch they could not letch	I could not be letching you could not be letching he could not be letching we could not be letching you could not be letching they could not be letching
Perfect	V-ing perfect
I could not have letched you could not have letched he could not have letched we could not have letched you could not have letched they could not have letched	I could not have been letching you could not have been letching he could not have been letching we could not have been letching you could not have been letching they could not have been letching

Interrogative form

Simple form	V-ing form
could I letch? could you letch? could he letch? could we letch? could you letch? could they letch?	could I be letching? could you be letching? could he be letching? could we be letching? could you be letching? could they be letching?
Perfect	V-ing perfect
could I have letched? could you have letched? could he have letched? could we have letched? could you have letched? could they have letched?	could I have been letching? could you have been letching? could he have been letching? could we have been letching? could you have been letching? could they have been letching?

Interro-negative form

Simple form	V-ing form
could I not letch? could you not letch? could he not letch? could we not letch? could you not letch? could they not letch?	could I not be letching? could you not be letching? could he not be letching? could we not be letching? could you not be letching? could they not be letching?
Perfect	V-ing perfect
could I not have letched? could you not have letched? could he not have letched? could we not have letched? could you not have letched? could they not have letched?	could I not have been letching? could you not have been letching? could he not have been letching? could we not have been letching? could you not have been letching? could they not have been letching?