English verb conjugation
COULD OVERSUPPLY

Regular verb: oversupply - oversupplied - oversupplied

Affirmation

Simple form	V-ing form
I could oversupply you could oversupply he could oversupply we could oversupply you could oversupply they could oversupply	I could be oversupplying you could be oversupplying he could be oversupplying we could be oversupplying you could be oversupplying they could be oversupplying
Perfect	V-ing perfect
I could have oversupplied you could have oversupplied he could have oversupplied we could have oversupplied you could have oversupplied they could have oversupplied	I could have been oversupplying you could have been oversupplying he could have been oversupplying we could have been oversupplying you could have been oversupplying they could have been oversupplying

Negation

Simple form	V-ing form
I couldn't oversupply you couldn't oversupply he couldn't oversupply we couldn't oversupply you couldn't oversupply they couldn't oversupply	I couldn't be oversupplying you couldn't be oversupplying he couldn't be oversupplying we couldn't be oversupplying you couldn't be oversupplying they couldn't be oversupplying
Perfect	V-ing perfect
I couldn't have oversupplied you couldn't have oversupplied he couldn't have oversupplied we couldn't have oversupplied you couldn't have oversupplied they couldn't have oversupplied	I couldn't have been oversupplying you couldn't have been oversupplying he couldn't have been oversupplying we couldn't have been oversupplying you couldn't have been oversupplying they couldn't have been oversupplying

Interrogative form

Simple form	V-ing form
could I oversupply? could you oversupply? could he oversupply? could we oversupply? could you oversupply? could they oversupply?	could I be oversupplying? could you be oversupplying? could he be oversupplying? could we be oversupplying? could you be oversupplying? could they be oversupplying?
Perfect	V-ing perfect
could I have oversupplied? could you have oversupplied? could he have oversupplied? could we have oversupplied? could you have oversupplied? could they have oversupplied?	could I have been oversupplying? could you have been oversupplying? could he have been oversupplying? could we have been oversupplying? could you have been oversupplying? could they have been oversupplying?

Interro-negative form

Simple form	V-ing form
couldn't I oversupply? couldn't you oversupply? couldn't he oversupply? couldn't we oversupply? couldn't you oversupply? couldn't they oversupply?	couldn't I be oversupplying? couldn't you be oversupplying? couldn't he be oversupplying? couldn't we be oversupplying? couldn't you be oversupplying? couldn't they be oversupplying?
Perfect	V-ing perfect
couldn't I have oversupplied? couldn't you have oversupplied? couldn't he have oversupplied? couldn't we have oversupplied? couldn't you have oversupplied? couldn't they have oversupplied?	couldn't I have been oversupplying? couldn't you have been oversupplying? couldn't he have been oversupplying? couldn't we have been oversupplying? couldn't you have been oversupplying? couldn't they have been oversupplying?