English verb conjugation
COULD LESSEN

Regular verb: lessen - lessened - lessened

Affirmation

Simple form	V-ing form
I could lessen you could lessen she could lessen we could lessen you could lessen they could lessen	I could be lessening you could be lessening she could be lessening we could be lessening you could be lessening they could be lessening
Perfect	V-ing perfect
I could have lessened you could have lessened she could have lessened we could have lessened you could have lessened they could have lessened	I could have been lessening you could have been lessening she could have been lessening we could have been lessening you could have been lessening they could have been lessening

Negation

Simple form	V-ing form
I could not lessen you could not lessen she could not lessen we could not lessen you could not lessen they could not lessen	I could not be lessening you could not be lessening she could not be lessening we could not be lessening you could not be lessening they could not be lessening
Perfect	V-ing perfect
I could not have lessened you could not have lessened she could not have lessened we could not have lessened you could not have lessened they could not have lessened	I could not have been lessening you could not have been lessening she could not have been lessening we could not have been lessening you could not have been lessening they could not have been lessening

Interrogative form

Simple form	V-ing form
could I lessen? could you lessen? could she lessen? could we lessen? could you lessen? could they lessen?	could I be lessening? could you be lessening? could she be lessening? could we be lessening? could you be lessening? could they be lessening?
Perfect	V-ing perfect
could I have lessened? could you have lessened? could she have lessened? could we have lessened? could you have lessened? could they have lessened?	could I have been lessening? could you have been lessening? could she have been lessening? could we have been lessening? could you have been lessening? could they have been lessening?

Interro-negative form

Simple form	V-ing form
could I not lessen? could you not lessen? could she not lessen? could we not lessen? could you not lessen? could they not lessen?	could I not be lessening? could you not be lessening? could she not be lessening? could we not be lessening? could you not be lessening? could they not be lessening?
Perfect	V-ing perfect
could I not have lessened? could you not have lessened? could she not have lessened? could we not have lessened? could you not have lessened? could they not have lessened?	could I not have been lessening? could you not have been lessening? could she not have been lessening? could we not have been lessening? could you not have been lessening? could they not have been lessening?