I can reforest you can reforest he can reforest we can reforest you can reforest they can reforest
V-ing form
I can be reforesting you can be reforesting he can be reforesting we can be reforesting you can be reforesting they can be reforesting
Perfect
I can have reforested you can have reforested he can have reforested we can have reforested you can have reforested they can have reforested
V-ing perfect
I can have been reforesting you can have been reforesting he can have been reforesting we can have been reforesting you can have been reforesting they can have been reforesting
Negation
Simple form
I cannot reforest you cannot reforest he cannot reforest we cannot reforest you cannot reforest they cannot reforest
V-ing form
I cannot be reforesting you cannot be reforesting he cannot be reforesting we cannot be reforesting you cannot be reforesting they cannot be reforesting
Perfect
I cannot have reforested you cannot have reforested he cannot have reforested we cannot have reforested you cannot have reforested they cannot have reforested
V-ing perfect
I cannot have been reforesting you cannot have been reforesting he cannot have been reforesting we cannot have been reforesting you cannot have been reforesting they cannot have been reforesting
Interrogative form
Simple form
can I reforest? can you reforest? can he reforest? can we reforest? can you reforest? can they reforest?
V-ing form
can I be reforesting? can you be reforesting? can he be reforesting? can we be reforesting? can you be reforesting? can they be reforesting?
Perfect
can I have reforested? can you have reforested? can he have reforested? can we have reforested? can you have reforested? can they have reforested?
V-ing perfect
can I have been reforesting? can you have been reforesting? can he have been reforesting? can we have been reforesting? can you have been reforesting? can they have been reforesting?
Interro-negative form
Simple form
can I not reforest? can you not reforest? can he not reforest? can we not reforest? can you not reforest? can they not reforest?
V-ing form
can I not be reforesting? can you not be reforesting? can he not be reforesting? can we not be reforesting? can you not be reforesting? can they not be reforesting?
Perfect
can I not have reforested? can you not have reforested? can he not have reforested? can we not have reforested? can you not have reforested? can they not have reforested?
V-ing perfect
can I not have been reforesting? can you not have been reforesting? can he not have been reforesting? can we not have been reforesting? can you not have been reforesting? can they not have been reforesting?