I could afforest you could afforest she could afforest we could afforest you could afforest they could afforest
V-ing form
I could be afforesting you could be afforesting she could be afforesting we could be afforesting you could be afforesting they could be afforesting
Perfect
I could have afforested you could have afforested she could have afforested we could have afforested you could have afforested they could have afforested
V-ing perfect
I could have been afforesting you could have been afforesting she could have been afforesting we could have been afforesting you could have been afforesting they could have been afforesting
Negation
Simple form
I could not afforest you could not afforest she could not afforest we could not afforest you could not afforest they could not afforest
V-ing form
I could not be afforesting you could not be afforesting she could not be afforesting we could not be afforesting you could not be afforesting they could not be afforesting
Perfect
I could not have afforested you could not have afforested she could not have afforested we could not have afforested you could not have afforested they could not have afforested
V-ing perfect
I could not have been afforesting you could not have been afforesting she could not have been afforesting we could not have been afforesting you could not have been afforesting they could not have been afforesting
Interrogative form
Simple form
could I afforest? could you afforest? could she afforest? could we afforest? could you afforest? could they afforest?
V-ing form
could I be afforesting? could you be afforesting? could she be afforesting? could we be afforesting? could you be afforesting? could they be afforesting?
Perfect
could I have afforested? could you have afforested? could she have afforested? could we have afforested? could you have afforested? could they have afforested?
V-ing perfect
could I have been afforesting? could you have been afforesting? could she have been afforesting? could we have been afforesting? could you have been afforesting? could they have been afforesting?
Interro-negative form
Simple form
could I not afforest? could you not afforest? could she not afforest? could we not afforest? could you not afforest? could they not afforest?
V-ing form
could I not be afforesting? could you not be afforesting? could she not be afforesting? could we not be afforesting? could you not be afforesting? could they not be afforesting?
Perfect
could I not have afforested? could you not have afforested? could she not have afforested? could we not have afforested? could you not have afforested? could they not have afforested?
V-ing perfect
could I not have been afforesting? could you not have been afforesting? could she not have been afforesting? could we not have been afforesting? could you not have been afforesting? could they not have been afforesting?