I could harvest you could harvest he could harvest we could harvest you could harvest they could harvest
Forma com V-ing
I could be harvesting you could be harvesting he could be harvesting we could be harvesting you could be harvesting they could be harvesting
Perfeito
I could have harvested you could have harvested he could have harvested we could have harvested you could have harvested they could have harvested
Perfeito com V-ing
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
Negação
Forma simple
I could not harvest you could not harvest he could not harvest we could not harvest you could not harvest they could not harvest
Forma com V-ing
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
Perfeito
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
Perfeito com V-ing
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
Forma interrogativa
Forma simple
could I harvest? could you harvest? could he harvest? could we harvest? could you harvest? could they harvest?
Forma com V-ing
could I be harvesting? could you be harvesting? could he be harvesting? could we be harvesting? could you be harvesting? could they be harvesting?
Perfeito
could I have harvested? could you have harvested? could he have harvested? could we have harvested? could you have harvested? could they have harvested?
Perfeito com V-ing
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?
Forma interro-Negação
Forma simple
could I not harvest? could you not harvest? could he not harvest? could we not harvest? could you not harvest? could they not harvest?
Forma com V-ing
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?
Perfeito
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?
Perfeito com V-ing
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?