English verb conjugation
COULD HARVEST

Regular verb: harvest - harvested - harvested

Affirmation

Simple form	V-ing form
I could harvest you could harvest he could harvest we could harvest you could harvest they could harvest	I could be harvesting you could be harvesting he could be harvesting we could be harvesting you could be harvesting they could be harvesting
Perfect	V-ing perfect
I could have harvested you could have harvested he could have harvested we could have harvested you could have harvested they could have harvested	I could have been harvesting you could have been harvesting he could have been harvesting we could have been harvesting you could have been harvesting they could have been harvesting

Negation

Simple form	V-ing form
I could not harvest you could not harvest he could not harvest we could not harvest you could not harvest they could not harvest	I could not be harvesting you could not be harvesting he could not be harvesting we could not be harvesting you could not be harvesting they could not be harvesting
Perfect	V-ing perfect
I could not have harvested you could not have harvested he could not have harvested we could not have harvested you could not have harvested they could not have harvested	I could not have been harvesting you could not have been harvesting he could not have been harvesting we could not have been harvesting you could not have been harvesting they could not have been harvesting

Interrogative form

Simple form	V-ing form
could I harvest? could you harvest? could he harvest? could we harvest? could you harvest? could they harvest?	could I be harvesting? could you be harvesting? could he be harvesting? could we be harvesting? could you be harvesting? could they be harvesting?
Perfect	V-ing perfect
could I have harvested? could you have harvested? could he have harvested? could we have harvested? could you have harvested? could they have harvested?	could I have been harvesting? could you have been harvesting? could he have been harvesting? could we have been harvesting? could you have been harvesting? could they have been harvesting?

Interro-negative form

Simple form	V-ing form
could I not harvest? could you not harvest? could he not harvest? could we not harvest? could you not harvest? could they not harvest?	could I not be harvesting? could you not be harvesting? could he not be harvesting? could we not be harvesting? could you not be harvesting? could they not be harvesting?
Perfect	V-ing perfect
could I not have harvested? could you not have harvested? could he not have harvested? could we not have harvested? could you not have harvested? could they not have harvested?	could I not have been harvesting? could you not have been harvesting? could he not have been harvesting? could we not have been harvesting? could you not have been harvesting? could they not have been harvesting?