I can field you can field she can field we can field you can field they can field
V-ing form
I can be fielding you can be fielding she can be fielding we can be fielding you can be fielding they can be fielding
Perfect
I can have fielded you can have fielded she can have fielded we can have fielded you can have fielded they can have fielded
V-ing perfect
I can have been fielding you can have been fielding she can have been fielding we can have been fielding you can have been fielding they can have been fielding
Negation
Simple form
I cannot field you cannot field she cannot field we cannot field you cannot field they cannot field
V-ing form
I cannot be fielding you cannot be fielding she cannot be fielding we cannot be fielding you cannot be fielding they cannot be fielding
Perfect
I cannot have fielded you cannot have fielded she cannot have fielded we cannot have fielded you cannot have fielded they cannot have fielded
V-ing perfect
I cannot have been fielding you cannot have been fielding she cannot have been fielding we cannot have been fielding you cannot have been fielding they cannot have been fielding
Interrogative form
Simple form
can I field? can you field? can she field? can we field? can you field? can they field?
V-ing form
can I be fielding? can you be fielding? can she be fielding? can we be fielding? can you be fielding? can they be fielding?
Perfect
can I have fielded? can you have fielded? can she have fielded? can we have fielded? can you have fielded? can they have fielded?
V-ing perfect
can I have been fielding? can you have been fielding? can she have been fielding? can we have been fielding? can you have been fielding? can they have been fielding?
Interro-negative form
Simple form
can I not field? can you not field? can she not field? can we not field? can you not field? can they not field?
V-ing form
can I not be fielding? can you not be fielding? can she not be fielding? can we not be fielding? can you not be fielding? can they not be fielding?
Perfect
can I not have fielded? can you not have fielded? can she not have fielded? can we not have fielded? can you not have fielded? can they not have fielded?
V-ing perfect
can I not have been fielding? can you not have been fielding? can she not have been fielding? can we not have been fielding? can you not have been fielding? can they not have been fielding?