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