I can infest you can infest she can infest we can infest you can infest they can infest
V-ing form
I can be infesting you can be infesting she can be infesting we can be infesting you can be infesting they can be infesting
Perfect
I can have infested you can have infested she can have infested we can have infested you can have infested they can have infested
V-ing perfect
I can have been infesting you can have been infesting she can have been infesting we can have been infesting you can have been infesting they can have been infesting
Negation
Simple form
I cannot infest you cannot infest she cannot infest we cannot infest you cannot infest they cannot infest
V-ing form
I cannot be infesting you cannot be infesting she cannot be infesting we cannot be infesting you cannot be infesting they cannot be infesting
Perfect
I cannot have infested you cannot have infested she cannot have infested we cannot have infested you cannot have infested they cannot have infested
V-ing perfect
I cannot have been infesting you cannot have been infesting she cannot have been infesting we cannot have been infesting you cannot have been infesting they cannot have been infesting
Interrogative form
Simple form
can I infest? can you infest? can she infest? can we infest? can you infest? can they infest?
V-ing form
can I be infesting? can you be infesting? can she be infesting? can we be infesting? can you be infesting? can they be infesting?
Perfect
can I have infested? can you have infested? can she have infested? can we have infested? can you have infested? can they have infested?
V-ing perfect
can I have been infesting? can you have been infesting? can she have been infesting? can we have been infesting? can you have been infesting? can they have been infesting?
Interro-negative form
Simple form
can I not infest? can you not infest? can she not infest? can we not infest? can you not infest? can they not infest?
V-ing form
can I not be infesting? can you not be infesting? can she not be infesting? can we not be infesting? can you not be infesting? can they not be infesting?
Perfect
can I not have infested? can you not have infested? can she not have infested? can we not have infested? can you not have infested? can they not have infested?
V-ing perfect
can I not have been infesting? can you not have been infesting? can she not have been infesting? can we not have been infesting? can you not have been infesting? can they not have been infesting?