English verb conjugation
COULD SWELL

Irregular verb: swell - swelled - swelled, swollen

Affirmation

Simple form	V-ing form
I could swell you could swell he could swell we could swell you could swell they could swell	I could be swelling you could be swelling he could be swelling we could be swelling you could be swelling they could be swelling
Perfect	V-ing perfect
I could have swelled, swollen you could have swelled, swollen he could have swelled, swollen we could have swelled, swollen you could have swelled, swollen they could have swelled, swollen	I could have been swelling you could have been swelling he could have been swelling we could have been swelling you could have been swelling they could have been swelling

Negation

Simple form	V-ing form
I could not swell you could not swell he could not swell we could not swell you could not swell they could not swell	I could not be swelling you could not be swelling he could not be swelling we could not be swelling you could not be swelling they could not be swelling
Perfect	V-ing perfect
I could not have swelled, swollen you could not have swelled, swollen he could not have swelled, swollen we could not have swelled, swollen you could not have swelled, swollen they could not have swelled, swollen	I could not have been swelling you could not have been swelling he could not have been swelling we could not have been swelling you could not have been swelling they could not have been swelling

Interrogative form

Simple form	V-ing form
could I swell? could you swell? could he swell? could we swell? could you swell? could they swell?	could I be swelling? could you be swelling? could he be swelling? could we be swelling? could you be swelling? could they be swelling?
Perfect	V-ing perfect
could I have swelled, swollen? could you have swelled, swollen? could he have swelled, swollen? could we have swelled, swollen? could you have swelled, swollen? could they have swelled, swollen?	could I have been swelling? could you have been swelling? could he have been swelling? could we have been swelling? could you have been swelling? could they have been swelling?

Interro-negative form

Simple form	V-ing form
could I not swell? could you not swell? could he not swell? could we not swell? could you not swell? could they not swell?	could I not be swelling? could you not be swelling? could he not be swelling? could we not be swelling? could you not be swelling? could they not be swelling?
Perfect	V-ing perfect
could I not have swelled, swollen? could you not have swelled, swollen? could he not have swelled, swollen? could we not have swelled, swollen? could you not have swelled, swollen? could they not have swelled, swollen?	could I not have been swelling? could you not have been swelling? could he not have been swelling? could we not have been swelling? could you not have been swelling? could they not have been swelling?