English verb conjugation
COULD SUBDUCT

Regular verb: subduct - subducted - subducted

Affirmation

Simple form	V-ing form
I could subduct you could subduct he could subduct we could subduct you could subduct they could subduct	I could be subducting you could be subducting he could be subducting we could be subducting you could be subducting they could be subducting
Perfect	V-ing perfect
I could have subducted you could have subducted he could have subducted we could have subducted you could have subducted they could have subducted	I could have been subducting you could have been subducting he could have been subducting we could have been subducting you could have been subducting they could have been subducting

Negation

Simple form	V-ing form
I couldn't subduct you couldn't subduct he couldn't subduct we couldn't subduct you couldn't subduct they couldn't subduct	I couldn't be subducting you couldn't be subducting he couldn't be subducting we couldn't be subducting you couldn't be subducting they couldn't be subducting
Perfect	V-ing perfect
I couldn't have subducted you couldn't have subducted he couldn't have subducted we couldn't have subducted you couldn't have subducted they couldn't have subducted	I couldn't have been subducting you couldn't have been subducting he couldn't have been subducting we couldn't have been subducting you couldn't have been subducting they couldn't have been subducting

Interrogative form

Simple form	V-ing form
could I subduct? could you subduct? could he subduct? could we subduct? could you subduct? could they subduct?	could I be subducting? could you be subducting? could he be subducting? could we be subducting? could you be subducting? could they be subducting?
Perfect	V-ing perfect
could I have subducted? could you have subducted? could he have subducted? could we have subducted? could you have subducted? could they have subducted?	could I have been subducting? could you have been subducting? could he have been subducting? could we have been subducting? could you have been subducting? could they have been subducting?

Interro-negative form

Simple form	V-ing form
couldn't I subduct? couldn't you subduct? couldn't he subduct? couldn't we subduct? couldn't you subduct? couldn't they subduct?	couldn't I be subducting? couldn't you be subducting? couldn't he be subducting? couldn't we be subducting? couldn't you be subducting? couldn't they be subducting?
Perfect	V-ing perfect
couldn't I have subducted? couldn't you have subducted? couldn't he have subducted? couldn't we have subducted? couldn't you have subducted? couldn't they have subducted?	couldn't I have been subducting? couldn't you have been subducting? couldn't he have been subducting? couldn't we have been subducting? couldn't you have been subducting? couldn't they have been subducting?