English verb conjugation
COULD KIBITZ

Regular verb: kibitz - kibitzed - kibitzed

Affirmation

Simple form	V-ing form
I could kibitz you could kibitz she could kibitz we could kibitz you could kibitz they could kibitz	I could be kibitzing you could be kibitzing she could be kibitzing we could be kibitzing you could be kibitzing they could be kibitzing
Perfect	V-ing perfect
I could have kibitzed you could have kibitzed she could have kibitzed we could have kibitzed you could have kibitzed they could have kibitzed	I could have been kibitzing you could have been kibitzing she could have been kibitzing we could have been kibitzing you could have been kibitzing they could have been kibitzing

Negation

Simple form	V-ing form
I couldn't kibitz you couldn't kibitz she couldn't kibitz we couldn't kibitz you couldn't kibitz they couldn't kibitz	I couldn't be kibitzing you couldn't be kibitzing she couldn't be kibitzing we couldn't be kibitzing you couldn't be kibitzing they couldn't be kibitzing
Perfect	V-ing perfect
I couldn't have kibitzed you couldn't have kibitzed she couldn't have kibitzed we couldn't have kibitzed you couldn't have kibitzed they couldn't have kibitzed	I couldn't have been kibitzing you couldn't have been kibitzing she couldn't have been kibitzing we couldn't have been kibitzing you couldn't have been kibitzing they couldn't have been kibitzing

Interrogative form

Simple form	V-ing form
could I kibitz? could you kibitz? could she kibitz? could we kibitz? could you kibitz? could they kibitz?	could I be kibitzing? could you be kibitzing? could she be kibitzing? could we be kibitzing? could you be kibitzing? could they be kibitzing?
Perfect	V-ing perfect
could I have kibitzed? could you have kibitzed? could she have kibitzed? could we have kibitzed? could you have kibitzed? could they have kibitzed?	could I have been kibitzing? could you have been kibitzing? could she have been kibitzing? could we have been kibitzing? could you have been kibitzing? could they have been kibitzing?

Interro-negative form

Simple form	V-ing form
couldn't I kibitz? couldn't you kibitz? couldn't she kibitz? couldn't we kibitz? couldn't you kibitz? couldn't they kibitz?	couldn't I be kibitzing? couldn't you be kibitzing? couldn't she be kibitzing? couldn't we be kibitzing? couldn't you be kibitzing? couldn't they be kibitzing?
Perfect	V-ing perfect
couldn't I have kibitzed? couldn't you have kibitzed? couldn't she have kibitzed? couldn't we have kibitzed? couldn't you have kibitzed? couldn't they have kibitzed?	couldn't I have been kibitzing? couldn't you have been kibitzing? couldn't she have been kibitzing? couldn't we have been kibitzing? couldn't you have been kibitzing? couldn't they have been kibitzing?