English verb conjugation
COULD EXTIRPATE

Regular verb: extirpate - extirpated - extirpated

Affirmation

Simple form	V-ing form
I could extirpate you could extirpate she could extirpate we could extirpate you could extirpate they could extirpate	I could be extirpating you could be extirpating she could be extirpating we could be extirpating you could be extirpating they could be extirpating
Perfect	V-ing perfect
I could have extirpated you could have extirpated she could have extirpated we could have extirpated you could have extirpated they could have extirpated	I could have been extirpating you could have been extirpating she could have been extirpating we could have been extirpating you could have been extirpating they could have been extirpating

Negation

Simple form	V-ing form
I couldn't extirpate you couldn't extirpate she couldn't extirpate we couldn't extirpate you couldn't extirpate they couldn't extirpate	I couldn't be extirpating you couldn't be extirpating she couldn't be extirpating we couldn't be extirpating you couldn't be extirpating they couldn't be extirpating
Perfect	V-ing perfect
I couldn't have extirpated you couldn't have extirpated she couldn't have extirpated we couldn't have extirpated you couldn't have extirpated they couldn't have extirpated	I couldn't have been extirpating you couldn't have been extirpating she couldn't have been extirpating we couldn't have been extirpating you couldn't have been extirpating they couldn't have been extirpating

Interrogative form

Simple form	V-ing form
could I extirpate? could you extirpate? could she extirpate? could we extirpate? could you extirpate? could they extirpate?	could I be extirpating? could you be extirpating? could she be extirpating? could we be extirpating? could you be extirpating? could they be extirpating?
Perfect	V-ing perfect
could I have extirpated? could you have extirpated? could she have extirpated? could we have extirpated? could you have extirpated? could they have extirpated?	could I have been extirpating? could you have been extirpating? could she have been extirpating? could we have been extirpating? could you have been extirpating? could they have been extirpating?

Interro-negative form

Simple form	V-ing form
couldn't I extirpate? couldn't you extirpate? couldn't she extirpate? couldn't we extirpate? couldn't you extirpate? couldn't they extirpate?	couldn't I be extirpating? couldn't you be extirpating? couldn't she be extirpating? couldn't we be extirpating? couldn't you be extirpating? couldn't they be extirpating?
Perfect	V-ing perfect
couldn't I have extirpated? couldn't you have extirpated? couldn't she have extirpated? couldn't we have extirpated? couldn't you have extirpated? couldn't they have extirpated?	couldn't I have been extirpating? couldn't you have been extirpating? couldn't she have been extirpating? couldn't we have been extirpating? couldn't you have been extirpating? couldn't they have been extirpating?