English verb conjugation
COULD SALLOW

Regular verb: sallow - sallowed - sallowed

Affirmation

Simple form	V-ing form
I could sallow you could sallow he could sallow we could sallow you could sallow they could sallow	I could be sallowing you could be sallowing he could be sallowing we could be sallowing you could be sallowing they could be sallowing
Perfect	V-ing perfect
I could have sallowed you could have sallowed he could have sallowed we could have sallowed you could have sallowed they could have sallowed	I could have been sallowing you could have been sallowing he could have been sallowing we could have been sallowing you could have been sallowing they could have been sallowing

Negation

Simple form	V-ing form
I couldn't sallow you couldn't sallow he couldn't sallow we couldn't sallow you couldn't sallow they couldn't sallow	I couldn't be sallowing you couldn't be sallowing he couldn't be sallowing we couldn't be sallowing you couldn't be sallowing they couldn't be sallowing
Perfect	V-ing perfect
I couldn't have sallowed you couldn't have sallowed he couldn't have sallowed we couldn't have sallowed you couldn't have sallowed they couldn't have sallowed	I couldn't have been sallowing you couldn't have been sallowing he couldn't have been sallowing we couldn't have been sallowing you couldn't have been sallowing they couldn't have been sallowing

Interrogative form

Simple form	V-ing form
could I sallow? could you sallow? could he sallow? could we sallow? could you sallow? could they sallow?	could I be sallowing? could you be sallowing? could he be sallowing? could we be sallowing? could you be sallowing? could they be sallowing?
Perfect	V-ing perfect
could I have sallowed? could you have sallowed? could he have sallowed? could we have sallowed? could you have sallowed? could they have sallowed?	could I have been sallowing? could you have been sallowing? could he have been sallowing? could we have been sallowing? could you have been sallowing? could they have been sallowing?

Interro-negative form

Simple form	V-ing form
couldn't I sallow? couldn't you sallow? couldn't he sallow? couldn't we sallow? couldn't you sallow? couldn't they sallow?	couldn't I be sallowing? couldn't you be sallowing? couldn't he be sallowing? couldn't we be sallowing? couldn't you be sallowing? couldn't they be sallowing?
Perfect	V-ing perfect
couldn't I have sallowed? couldn't you have sallowed? couldn't he have sallowed? couldn't we have sallowed? couldn't you have sallowed? couldn't they have sallowed?	couldn't I have been sallowing? couldn't you have been sallowing? couldn't he have been sallowing? couldn't we have been sallowing? couldn't you have been sallowing? couldn't they have been sallowing?