English verb conjugation
COULD SCAR

Regular verb: scar - scarred - scarred

Affirmation

Simple form	V-ing form
I could scar you could scar he could scar we could scar you could scar they could scar	I could be scarring you could be scarring he could be scarring we could be scarring you could be scarring they could be scarring
Perfect	V-ing perfect
I could have scarred you could have scarred he could have scarred we could have scarred you could have scarred they could have scarred	I could have been scarring you could have been scarring he could have been scarring we could have been scarring you could have been scarring they could have been scarring

Negation

Simple form	V-ing form
I couldn't scar you couldn't scar he couldn't scar we couldn't scar you couldn't scar they couldn't scar	I couldn't be scarring you couldn't be scarring he couldn't be scarring we couldn't be scarring you couldn't be scarring they couldn't be scarring
Perfect	V-ing perfect
I couldn't have scarred you couldn't have scarred he couldn't have scarred we couldn't have scarred you couldn't have scarred they couldn't have scarred	I couldn't have been scarring you couldn't have been scarring he couldn't have been scarring we couldn't have been scarring you couldn't have been scarring they couldn't have been scarring

Interrogative form

Simple form	V-ing form
could I scar? could you scar? could he scar? could we scar? could you scar? could they scar?	could I be scarring? could you be scarring? could he be scarring? could we be scarring? could you be scarring? could they be scarring?
Perfect	V-ing perfect
could I have scarred? could you have scarred? could he have scarred? could we have scarred? could you have scarred? could they have scarred?	could I have been scarring? could you have been scarring? could he have been scarring? could we have been scarring? could you have been scarring? could they have been scarring?

Interro-negative form

Simple form	V-ing form
couldn't I scar? couldn't you scar? couldn't he scar? couldn't we scar? couldn't you scar? couldn't they scar?	couldn't I be scarring? couldn't you be scarring? couldn't he be scarring? couldn't we be scarring? couldn't you be scarring? couldn't they be scarring?
Perfect	V-ing perfect
couldn't I have scarred? couldn't you have scarred? couldn't he have scarred? couldn't we have scarred? couldn't you have scarred? couldn't they have scarred?	couldn't I have been scarring? couldn't you have been scarring? couldn't he have been scarring? couldn't we have been scarring? couldn't you have been scarring? couldn't they have been scarring?