English verb conjugation
COULD SLOUCH

Regular verb: slouch - slouched - slouched

Affirmation

Simple form	V-ing form
I could slouch you could slouch he could slouch we could slouch you could slouch they could slouch	I could be slouching you could be slouching he could be slouching we could be slouching you could be slouching they could be slouching
Perfect	V-ing perfect
I could have slouched you could have slouched he could have slouched we could have slouched you could have slouched they could have slouched	I could have been slouching you could have been slouching he could have been slouching we could have been slouching you could have been slouching they could have been slouching

Negation

Simple form	V-ing form
I couldn't slouch you couldn't slouch he couldn't slouch we couldn't slouch you couldn't slouch they couldn't slouch	I couldn't be slouching you couldn't be slouching he couldn't be slouching we couldn't be slouching you couldn't be slouching they couldn't be slouching
Perfect	V-ing perfect
I couldn't have slouched you couldn't have slouched he couldn't have slouched we couldn't have slouched you couldn't have slouched they couldn't have slouched	I couldn't have been slouching you couldn't have been slouching he couldn't have been slouching we couldn't have been slouching you couldn't have been slouching they couldn't have been slouching

Interrogative form

Simple form	V-ing form
could I slouch? could you slouch? could he slouch? could we slouch? could you slouch? could they slouch?	could I be slouching? could you be slouching? could he be slouching? could we be slouching? could you be slouching? could they be slouching?
Perfect	V-ing perfect
could I have slouched? could you have slouched? could he have slouched? could we have slouched? could you have slouched? could they have slouched?	could I have been slouching? could you have been slouching? could he have been slouching? could we have been slouching? could you have been slouching? could they have been slouching?

Interro-negative form

Simple form	V-ing form
couldn't I slouch? couldn't you slouch? couldn't he slouch? couldn't we slouch? couldn't you slouch? couldn't they slouch?	couldn't I be slouching? couldn't you be slouching? couldn't he be slouching? couldn't we be slouching? couldn't you be slouching? couldn't they be slouching?
Perfect	V-ing perfect
couldn't I have slouched? couldn't you have slouched? couldn't he have slouched? couldn't we have slouched? couldn't you have slouched? couldn't they have slouched?	couldn't I have been slouching? couldn't you have been slouching? couldn't he have been slouching? couldn't we have been slouching? couldn't you have been slouching? couldn't they have been slouching?