English verb conjugation
COULD UNDERSUPPLY

Regular verb: undersupply - undersupplied - undersupplied

Affirmation

Simple form	V-ing form
I could undersupply you could undersupply he could undersupply we could undersupply you could undersupply they could undersupply	I could be undersupplying you could be undersupplying he could be undersupplying we could be undersupplying you could be undersupplying they could be undersupplying
Perfect	V-ing perfect
I could have undersupplied you could have undersupplied he could have undersupplied we could have undersupplied you could have undersupplied they could have undersupplied	I could have been undersupplying you could have been undersupplying he could have been undersupplying we could have been undersupplying you could have been undersupplying they could have been undersupplying

Negation

Simple form	V-ing form
I couldn't undersupply you couldn't undersupply he couldn't undersupply we couldn't undersupply you couldn't undersupply they couldn't undersupply	I couldn't be undersupplying you couldn't be undersupplying he couldn't be undersupplying we couldn't be undersupplying you couldn't be undersupplying they couldn't be undersupplying
Perfect	V-ing perfect
I couldn't have undersupplied you couldn't have undersupplied he couldn't have undersupplied we couldn't have undersupplied you couldn't have undersupplied they couldn't have undersupplied	I couldn't have been undersupplying you couldn't have been undersupplying he couldn't have been undersupplying we couldn't have been undersupplying you couldn't have been undersupplying they couldn't have been undersupplying

Interrogative form

Simple form	V-ing form
could I undersupply? could you undersupply? could he undersupply? could we undersupply? could you undersupply? could they undersupply?	could I be undersupplying? could you be undersupplying? could he be undersupplying? could we be undersupplying? could you be undersupplying? could they be undersupplying?
Perfect	V-ing perfect
could I have undersupplied? could you have undersupplied? could he have undersupplied? could we have undersupplied? could you have undersupplied? could they have undersupplied?	could I have been undersupplying? could you have been undersupplying? could he have been undersupplying? could we have been undersupplying? could you have been undersupplying? could they have been undersupplying?

Interro-negative form

Simple form	V-ing form
couldn't I undersupply? couldn't you undersupply? couldn't he undersupply? couldn't we undersupply? couldn't you undersupply? couldn't they undersupply?	couldn't I be undersupplying? couldn't you be undersupplying? couldn't he be undersupplying? couldn't we be undersupplying? couldn't you be undersupplying? couldn't they be undersupplying?
Perfect	V-ing perfect
couldn't I have undersupplied? couldn't you have undersupplied? couldn't he have undersupplied? couldn't we have undersupplied? couldn't you have undersupplied? couldn't they have undersupplied?	couldn't I have been undersupplying? couldn't you have been undersupplying? couldn't he have been undersupplying? couldn't we have been undersupplying? couldn't you have been undersupplying? couldn't they have been undersupplying?