English verb conjugation
COULD DOOM

Regular verb: doom - doomed - doomed

Affirmation

Simple form	V-ing form
I could doom you could doom she could doom we could doom you could doom they could doom	I could be dooming you could be dooming she could be dooming we could be dooming you could be dooming they could be dooming
Perfect	V-ing perfect
I could have doomed you could have doomed she could have doomed we could have doomed you could have doomed they could have doomed	I could have been dooming you could have been dooming she could have been dooming we could have been dooming you could have been dooming they could have been dooming

Negation

Simple form	V-ing form
I could not doom you could not doom she could not doom we could not doom you could not doom they could not doom	I could not be dooming you could not be dooming she could not be dooming we could not be dooming you could not be dooming they could not be dooming
Perfect	V-ing perfect
I could not have doomed you could not have doomed she could not have doomed we could not have doomed you could not have doomed they could not have doomed	I could not have been dooming you could not have been dooming she could not have been dooming we could not have been dooming you could not have been dooming they could not have been dooming

Interrogative form

Simple form	V-ing form
could I doom? could you doom? could she doom? could we doom? could you doom? could they doom?	could I be dooming? could you be dooming? could she be dooming? could we be dooming? could you be dooming? could they be dooming?
Perfect	V-ing perfect
could I have doomed? could you have doomed? could she have doomed? could we have doomed? could you have doomed? could they have doomed?	could I have been dooming? could you have been dooming? could she have been dooming? could we have been dooming? could you have been dooming? could they have been dooming?

Interro-negative form

Simple form	V-ing form
could I not doom? could you not doom? could she not doom? could we not doom? could you not doom? could they not doom?	could I not be dooming? could you not be dooming? could she not be dooming? could we not be dooming? could you not be dooming? could they not be dooming?
Perfect	V-ing perfect
could I not have doomed? could you not have doomed? could she not have doomed? could we not have doomed? could you not have doomed? could they not have doomed?	could I not have been dooming? could you not have been dooming? could she not have been dooming? could we not have been dooming? could you not have been dooming? could they not have been dooming?