English verb conjugation
COULD SWILL

Regular verb: swill - swilled - swilled

Affirmation

Simple form	V-ing form
I could swill you could swill she could swill we could swill you could swill they could swill	I could be swilling you could be swilling she could be swilling we could be swilling you could be swilling they could be swilling
Perfect	V-ing perfect
I could have swilled you could have swilled she could have swilled we could have swilled you could have swilled they could have swilled	I could have been swilling you could have been swilling she could have been swilling we could have been swilling you could have been swilling they could have been swilling

Negation

Simple form	V-ing form
I could not swill you could not swill she could not swill we could not swill you could not swill they could not swill	I could not be swilling you could not be swilling she could not be swilling we could not be swilling you could not be swilling they could not be swilling
Perfect	V-ing perfect
I could not have swilled you could not have swilled she could not have swilled we could not have swilled you could not have swilled they could not have swilled	I could not have been swilling you could not have been swilling she could not have been swilling we could not have been swilling you could not have been swilling they could not have been swilling

Interrogative form

Simple form	V-ing form
could I swill? could you swill? could she swill? could we swill? could you swill? could they swill?	could I be swilling? could you be swilling? could she be swilling? could we be swilling? could you be swilling? could they be swilling?
Perfect	V-ing perfect
could I have swilled? could you have swilled? could she have swilled? could we have swilled? could you have swilled? could they have swilled?	could I have been swilling? could you have been swilling? could she have been swilling? could we have been swilling? could you have been swilling? could they have been swilling?

Interro-negative form

Simple form	V-ing form
could I not swill? could you not swill? could she not swill? could we not swill? could you not swill? could they not swill?	could I not be swilling? could you not be swilling? could she not be swilling? could we not be swilling? could you not be swilling? could they not be swilling?
Perfect	V-ing perfect
could I not have swilled? could you not have swilled? could she not have swilled? could we not have swilled? could you not have swilled? could they not have swilled?	could I not have been swilling? could you not have been swilling? could she not have been swilling? could we not have been swilling? could you not have been swilling? could they not have been swilling?