English verb conjugation
COULD AGGRIEVE

Regular verb: aggrieve - aggrieved - aggrieved

Affirmation

Simple form	V-ing form
I could aggrieve you could aggrieve he could aggrieve we could aggrieve you could aggrieve they could aggrieve	I could be aggrieving you could be aggrieving he could be aggrieving we could be aggrieving you could be aggrieving they could be aggrieving
Perfect	V-ing perfect
I could have aggrieved you could have aggrieved he could have aggrieved we could have aggrieved you could have aggrieved they could have aggrieved	I could have been aggrieving you could have been aggrieving he could have been aggrieving we could have been aggrieving you could have been aggrieving they could have been aggrieving

Negation

Simple form	V-ing form
I could not aggrieve you could not aggrieve he could not aggrieve we could not aggrieve you could not aggrieve they could not aggrieve	I could not be aggrieving you could not be aggrieving he could not be aggrieving we could not be aggrieving you could not be aggrieving they could not be aggrieving
Perfect	V-ing perfect
I could not have aggrieved you could not have aggrieved he could not have aggrieved we could not have aggrieved you could not have aggrieved they could not have aggrieved	I could not have been aggrieving you could not have been aggrieving he could not have been aggrieving we could not have been aggrieving you could not have been aggrieving they could not have been aggrieving

Interrogative form

Simple form	V-ing form
could I aggrieve? could you aggrieve? could he aggrieve? could we aggrieve? could you aggrieve? could they aggrieve?	could I be aggrieving? could you be aggrieving? could he be aggrieving? could we be aggrieving? could you be aggrieving? could they be aggrieving?
Perfect	V-ing perfect
could I have aggrieved? could you have aggrieved? could he have aggrieved? could we have aggrieved? could you have aggrieved? could they have aggrieved?	could I have been aggrieving? could you have been aggrieving? could he have been aggrieving? could we have been aggrieving? could you have been aggrieving? could they have been aggrieving?

Interro-negative form

Simple form	V-ing form
could I not aggrieve? could you not aggrieve? could he not aggrieve? could we not aggrieve? could you not aggrieve? could they not aggrieve?	could I not be aggrieving? could you not be aggrieving? could he not be aggrieving? could we not be aggrieving? could you not be aggrieving? could they not be aggrieving?
Perfect	V-ing perfect
could I not have aggrieved? could you not have aggrieved? could he not have aggrieved? could we not have aggrieved? could you not have aggrieved? could they not have aggrieved?	could I not have been aggrieving? could you not have been aggrieving? could he not have been aggrieving? could we not have been aggrieving? could you not have been aggrieving? could they not have been aggrieving?