English verb conjugation
COULD GARGLE

Regular verb: gargle - gargled - gargled

Affirmation

Simple form	V-ing form
I could gargle you could gargle he could gargle we could gargle you could gargle they could gargle	I could be gargling you could be gargling he 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 he 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 he 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 couldn't gargle you couldn't gargle he couldn't gargle we couldn't gargle you couldn't gargle they couldn't gargle	I couldn't be gargling you couldn't be gargling he couldn't be gargling we couldn't be gargling you couldn't be gargling they couldn't be gargling
Perfect	V-ing perfect
I couldn't have gargled you couldn't have gargled he couldn't have gargled we couldn't have gargled you couldn't have gargled they couldn't have gargled	I couldn't have been gargling you couldn't have been gargling he couldn't have been gargling we couldn't have been gargling you couldn't have been gargling they couldn't have been gargling

Interrogative form

Simple form	V-ing form
could I gargle? could you gargle? could he gargle? could we gargle? could you gargle? could they gargle?	could I be gargling? could you be gargling? could he 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 he 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 he 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
couldn't I gargle? couldn't you gargle? couldn't he gargle? couldn't we gargle? couldn't you gargle? couldn't they gargle?	couldn't I be gargling? couldn't you be gargling? couldn't he be gargling? couldn't we be gargling? couldn't you be gargling? couldn't they be gargling?
Perfect	V-ing perfect
couldn't I have gargled? couldn't you have gargled? couldn't he have gargled? couldn't we have gargled? couldn't you have gargled? couldn't they have gargled?	couldn't I have been gargling? couldn't you have been gargling? couldn't he have been gargling? couldn't we have been gargling? couldn't you have been gargling? couldn't they have been gargling?