English verb conjugation
COULD GARGLE

Regular verb: gargle - gargled - gargled

Affirmation

Simple form	V-ing form
I could gargle you could gargle she could gargle we could gargle you could gargle they could gargle	I could be gargling you could be gargling she could be gargling we could be gargling you could be gargling they could be gargling
Perfect	V-ing perfect
I could have gargled you could have gargled she could have gargled we could have gargled you could have gargled they could have gargled	I could have been gargling you could have been gargling she could have been gargling we could have been gargling you could have been gargling they could have been gargling

Negation

Simple form	V-ing form
I could not gargle you could not gargle she could not gargle we could not gargle you could not gargle they could not gargle	I could not be gargling you could not be gargling she could not be gargling we could not be gargling you could not be gargling they could not be gargling
Perfect	V-ing perfect
I could not have gargled you could not have gargled she could not have gargled we could not have gargled you could not have gargled they could not have gargled	I could not have been gargling you could not have been gargling she could not have been gargling we could not have been gargling you could not have been gargling they could not have been gargling

Interrogative form

Simple form	V-ing form
could I gargle? could you gargle? could she gargle? could we gargle? could you gargle? could they gargle?	could I be gargling? could you be gargling? could she be gargling? could we be gargling? could you be gargling? could they be gargling?
Perfect	V-ing perfect
could I have gargled? could you have gargled? could she have gargled? could we have gargled? could you have gargled? could they have gargled?	could I have been gargling? could you have been gargling? could she have been gargling? could we have been gargling? could you have been gargling? could they have been gargling?

Interro-negative form

Simple form	V-ing form
could I not gargle? could you not gargle? could she not gargle? could we not gargle? could you not gargle? could they not gargle?	could I not be gargling? could you not be gargling? could she not be gargling? could we not be gargling? could you not be gargling? could they not be gargling?
Perfect	V-ing perfect
could I not have gargled? could you not have gargled? could she not have gargled? could we not have gargled? could you not have gargled? could they not have gargled?	could I not have been gargling? could you not have been gargling? could she not have been gargling? could we not have been gargling? could you not have been gargling? could they not have been gargling?