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 can't field you can't field she can't field we can't field you can't field they can't field
V-ing form
I can't be fielding you can't be fielding she can't be fielding we can't be fielding you can't be fielding they can't be fielding
Perfect
I can't have fielded you can't have fielded she can't have fielded we can't have fielded you can't have fielded they can't have fielded
V-ing perfect
I can't have been fielding you can't have been fielding she can't have been fielding we can't have been fielding you can't have been fielding they can't 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't I field? can't you field? can't she field? can't we field? can't you field? can't they field?
V-ing form
can't I be fielding? can't you be fielding? can't she be fielding? can't we be fielding? can't you be fielding? can't they be fielding?
Perfect
can't I have fielded? can't you have fielded? can't she have fielded? can't we have fielded? can't you have fielded? can't they have fielded?
V-ing perfect
can't I have been fielding? can't you have been fielding? can't she have been fielding? can't we have been fielding? can't you have been fielding? can't they have been fielding?