I could reforest you could reforest he could reforest we could reforest you could reforest they could reforest
V-ing form
I could be reforesting you could be reforesting he could be reforesting we could be reforesting you could be reforesting they could be reforesting
Perfect
I could have reforested you could have reforested he could have reforested we could have reforested you could have reforested they could have reforested
V-ing perfect
I could have been reforesting you could have been reforesting he could have been reforesting we could have been reforesting you could have been reforesting they could have been reforesting
Negation
Simple form
I couldn't reforest you couldn't reforest he couldn't reforest we couldn't reforest you couldn't reforest they couldn't reforest
V-ing form
I couldn't be reforesting you couldn't be reforesting he couldn't be reforesting we couldn't be reforesting you couldn't be reforesting they couldn't be reforesting
Perfect
I couldn't have reforested you couldn't have reforested he couldn't have reforested we couldn't have reforested you couldn't have reforested they couldn't have reforested
V-ing perfect
I couldn't have been reforesting you couldn't have been reforesting he couldn't have been reforesting we couldn't have been reforesting you couldn't have been reforesting they couldn't have been reforesting
Interrogative form
Simple form
could I reforest? could you reforest? could he reforest? could we reforest? could you reforest? could they reforest?
V-ing form
could I be reforesting? could you be reforesting? could he be reforesting? could we be reforesting? could you be reforesting? could they be reforesting?
Perfect
could I have reforested? could you have reforested? could he have reforested? could we have reforested? could you have reforested? could they have reforested?
V-ing perfect
could I have been reforesting? could you have been reforesting? could he have been reforesting? could we have been reforesting? could you have been reforesting? could they have been reforesting?
Interro-negative form
Simple form
couldn't I reforest? couldn't you reforest? couldn't he reforest? couldn't we reforest? couldn't you reforest? couldn't they reforest?
V-ing form
couldn't I be reforesting? couldn't you be reforesting? couldn't he be reforesting? couldn't we be reforesting? couldn't you be reforesting? couldn't they be reforesting?
Perfect
couldn't I have reforested? couldn't you have reforested? couldn't he have reforested? couldn't we have reforested? couldn't you have reforested? couldn't they have reforested?
V-ing perfect
couldn't I have been reforesting? couldn't you have been reforesting? couldn't he have been reforesting? couldn't we have been reforesting? couldn't you have been reforesting? couldn't they have been reforesting?