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 couldn't letch you couldn't letch he couldn't letch we couldn't letch you couldn't letch they couldn't letch	I couldn't be letching you couldn't be letching he couldn't be letching we couldn't be letching you couldn't be letching they couldn't be letching
Perfect	V-ing perfect
I couldn't have letched you couldn't have letched he couldn't have letched we couldn't have letched you couldn't have letched they couldn't have letched	I couldn't have been letching you couldn't have been letching he couldn't have been letching we couldn't have been letching you couldn't have been letching they couldn't 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
couldn't I letch? couldn't you letch? couldn't he letch? couldn't we letch? couldn't you letch? couldn't they letch?	couldn't I be letching? couldn't you be letching? couldn't he be letching? couldn't we be letching? couldn't you be letching? couldn't they be letching?
Perfect	V-ing perfect
couldn't I have letched? couldn't you have letched? couldn't he have letched? couldn't we have letched? couldn't you have letched? couldn't they have letched?	couldn't I have been letching? couldn't you have been letching? couldn't he have been letching? couldn't we have been letching? couldn't you have been letching? couldn't they have been letching?