English verb conjugation
COULD FUMIGATE

Regular verb: fumigate - fumigated - fumigated

Affirmation

Simple form	V-ing form
I could fumigate you could fumigate he could fumigate we could fumigate you could fumigate they could fumigate	I could be fumigating you could be fumigating he could be fumigating we could be fumigating you could be fumigating they could be fumigating
Perfect	V-ing perfect
I could have fumigated you could have fumigated he could have fumigated we could have fumigated you could have fumigated they could have fumigated	I could have been fumigating you could have been fumigating he could have been fumigating we could have been fumigating you could have been fumigating they could have been fumigating

Negation

Simple form	V-ing form
I could not fumigate you could not fumigate he could not fumigate we could not fumigate you could not fumigate they could not fumigate	I could not be fumigating you could not be fumigating he could not be fumigating we could not be fumigating you could not be fumigating they could not be fumigating
Perfect	V-ing perfect
I could not have fumigated you could not have fumigated he could not have fumigated we could not have fumigated you could not have fumigated they could not have fumigated	I could not have been fumigating you could not have been fumigating he could not have been fumigating we could not have been fumigating you could not have been fumigating they could not have been fumigating

Interrogative form

Simple form	V-ing form
could I fumigate? could you fumigate? could he fumigate? could we fumigate? could you fumigate? could they fumigate?	could I be fumigating? could you be fumigating? could he be fumigating? could we be fumigating? could you be fumigating? could they be fumigating?
Perfect	V-ing perfect
could I have fumigated? could you have fumigated? could he have fumigated? could we have fumigated? could you have fumigated? could they have fumigated?	could I have been fumigating? could you have been fumigating? could he have been fumigating? could we have been fumigating? could you have been fumigating? could they have been fumigating?

Interro-negative form

Simple form	V-ing form
could I not fumigate? could you not fumigate? could he not fumigate? could we not fumigate? could you not fumigate? could they not fumigate?	could I not be fumigating? could you not be fumigating? could he not be fumigating? could we not be fumigating? could you not be fumigating? could they not be fumigating?
Perfect	V-ing perfect
could I not have fumigated? could you not have fumigated? could he not have fumigated? could we not have fumigated? could you not have fumigated? could they not have fumigated?	could I not have been fumigating? could you not have been fumigating? could he not have been fumigating? could we not have been fumigating? could you not have been fumigating? could they not have been fumigating?