English verb conjugation
COULD SLAG

Regular verb: slag - slagged - slagged

Affirmation

Simple form	V-ing form
I could slag you could slag he could slag we could slag you could slag they could slag	I could be slagging you could be slagging he could be slagging we could be slagging you could be slagging they could be slagging
Perfect	V-ing perfect
I could have slagged you could have slagged he could have slagged we could have slagged you could have slagged they could have slagged	I could have been slagging you could have been slagging he could have been slagging we could have been slagging you could have been slagging they could have been slagging

Negation

Simple form	V-ing form
I could not slag you could not slag he could not slag we could not slag you could not slag they could not slag	I could not be slagging you could not be slagging he could not be slagging we could not be slagging you could not be slagging they could not be slagging
Perfect	V-ing perfect
I could not have slagged you could not have slagged he could not have slagged we could not have slagged you could not have slagged they could not have slagged	I could not have been slagging you could not have been slagging he could not have been slagging we could not have been slagging you could not have been slagging they could not have been slagging

Interrogative form

Simple form	V-ing form
could I slag? could you slag? could he slag? could we slag? could you slag? could they slag?	could I be slagging? could you be slagging? could he be slagging? could we be slagging? could you be slagging? could they be slagging?
Perfect	V-ing perfect
could I have slagged? could you have slagged? could he have slagged? could we have slagged? could you have slagged? could they have slagged?	could I have been slagging? could you have been slagging? could he have been slagging? could we have been slagging? could you have been slagging? could they have been slagging?

Interro-negative form

Simple form	V-ing form
could I not slag? could you not slag? could he not slag? could we not slag? could you not slag? could they not slag?	could I not be slagging? could you not be slagging? could he not be slagging? could we not be slagging? could you not be slagging? could they not be slagging?
Perfect	V-ing perfect
could I not have slagged? could you not have slagged? could he not have slagged? could we not have slagged? could you not have slagged? could they not have slagged?	could I not have been slagging? could you not have been slagging? could he not have been slagging? could we not have been slagging? could you not have been slagging? could they not have been slagging?