English verb conjugation
COULD UNTEACH

Irregular verb: unteach - untaught - untaught

Affirmation

Simple form	V-ing form
I could unteach you could unteach he could unteach we could unteach you could unteach they could unteach	I could be unteaching you could be unteaching he could be unteaching we could be unteaching you could be unteaching they could be unteaching
Perfect	V-ing perfect
I could have untaught you could have untaught he could have untaught we could have untaught you could have untaught they could have untaught	I could have been unteaching you could have been unteaching he could have been unteaching we could have been unteaching you could have been unteaching they could have been unteaching

Negation

Simple form	V-ing form
I couldn't unteach you couldn't unteach he couldn't unteach we couldn't unteach you couldn't unteach they couldn't unteach	I couldn't be unteaching you couldn't be unteaching he couldn't be unteaching we couldn't be unteaching you couldn't be unteaching they couldn't be unteaching
Perfect	V-ing perfect
I couldn't have untaught you couldn't have untaught he couldn't have untaught we couldn't have untaught you couldn't have untaught they couldn't have untaught	I couldn't have been unteaching you couldn't have been unteaching he couldn't have been unteaching we couldn't have been unteaching you couldn't have been unteaching they couldn't have been unteaching

Interrogative form

Simple form	V-ing form
could I unteach? could you unteach? could he unteach? could we unteach? could you unteach? could they unteach?	could I be unteaching? could you be unteaching? could he be unteaching? could we be unteaching? could you be unteaching? could they be unteaching?
Perfect	V-ing perfect
could I have untaught? could you have untaught? could he have untaught? could we have untaught? could you have untaught? could they have untaught?	could I have been unteaching? could you have been unteaching? could he have been unteaching? could we have been unteaching? could you have been unteaching? could they have been unteaching?

Interro-negative form

Simple form	V-ing form
couldn't I unteach? couldn't you unteach? couldn't he unteach? couldn't we unteach? couldn't you unteach? couldn't they unteach?	couldn't I be unteaching? couldn't you be unteaching? couldn't he be unteaching? couldn't we be unteaching? couldn't you be unteaching? couldn't they be unteaching?
Perfect	V-ing perfect
couldn't I have untaught? couldn't you have untaught? couldn't he have untaught? couldn't we have untaught? couldn't you have untaught? couldn't they have untaught?	couldn't I have been unteaching? couldn't you have been unteaching? couldn't he have been unteaching? couldn't we have been unteaching? couldn't you have been unteaching? couldn't they have been unteaching?