I can underwithhold you can underwithhold he can underwithhold we can underwithhold you can underwithhold they can underwithhold
V-ing form
I can be underwithholding you can be underwithholding he can be underwithholding we can be underwithholding you can be underwithholding they can be underwithholding
Perfect
I can have underwithholded you can have underwithholded he can have underwithholded we can have underwithholded you can have underwithholded they can have underwithholded
V-ing perfect
I can have been underwithholding you can have been underwithholding he can have been underwithholding we can have been underwithholding you can have been underwithholding they can have been underwithholding
Negation
Simple form
I can't underwithhold you can't underwithhold he can't underwithhold we can't underwithhold you can't underwithhold they can't underwithhold
V-ing form
I can't be underwithholding you can't be underwithholding he can't be underwithholding we can't be underwithholding you can't be underwithholding they can't be underwithholding
Perfect
I can't have underwithholded you can't have underwithholded he can't have underwithholded we can't have underwithholded you can't have underwithholded they can't have underwithholded
V-ing perfect
I can't have been underwithholding you can't have been underwithholding he can't have been underwithholding we can't have been underwithholding you can't have been underwithholding they can't have been underwithholding
Interrogative form
Simple form
can I underwithhold? can you underwithhold? can he underwithhold? can we underwithhold? can you underwithhold? can they underwithhold?
V-ing form
can I be underwithholding? can you be underwithholding? can he be underwithholding? can we be underwithholding? can you be underwithholding? can they be underwithholding?
Perfect
can I have underwithholded? can you have underwithholded? can he have underwithholded? can we have underwithholded? can you have underwithholded? can they have underwithholded?
V-ing perfect
can I have been underwithholding? can you have been underwithholding? can he have been underwithholding? can we have been underwithholding? can you have been underwithholding? can they have been underwithholding?
Interro-negative form
Simple form
can't I underwithhold? can't you underwithhold? can't he underwithhold? can't we underwithhold? can't you underwithhold? can't they underwithhold?
V-ing form
can't I be underwithholding? can't you be underwithholding? can't he be underwithholding? can't we be underwithholding? can't you be underwithholding? can't they be underwithholding?
Perfect
can't I have underwithholded? can't you have underwithholded? can't he have underwithholded? can't we have underwithholded? can't you have underwithholded? can't they have underwithholded?
V-ing perfect
can't I have been underwithholding? can't you have been underwithholding? can't he have been underwithholding? can't we have been underwithholding? can't you have been underwithholding? can't they have been underwithholding?