I can abrade you can abrade he can abrade we can abrade you can abrade they can abrade
V-ing form
I can be abrading you can be abrading he can be abrading we can be abrading you can be abrading they can be abrading
Perfect
I can have abraded you can have abraded he can have abraded we can have abraded you can have abraded they can have abraded
V-ing perfect
I can have been abrading you can have been abrading he can have been abrading we can have been abrading you can have been abrading they can have been abrading
Negation
Simple form
I can't abrade you can't abrade he can't abrade we can't abrade you can't abrade they can't abrade
V-ing form
I can't be abrading you can't be abrading he can't be abrading we can't be abrading you can't be abrading they can't be abrading
Perfect
I can't have abraded you can't have abraded he can't have abraded we can't have abraded you can't have abraded they can't have abraded
V-ing perfect
I can't have been abrading you can't have been abrading he can't have been abrading we can't have been abrading you can't have been abrading they can't have been abrading
Interrogative form
Simple form
can I abrade? can you abrade? can he abrade? can we abrade? can you abrade? can they abrade?
V-ing form
can I be abrading? can you be abrading? can he be abrading? can we be abrading? can you be abrading? can they be abrading?
Perfect
can I have abraded? can you have abraded? can he have abraded? can we have abraded? can you have abraded? can they have abraded?
V-ing perfect
can I have been abrading? can you have been abrading? can he have been abrading? can we have been abrading? can you have been abrading? can they have been abrading?
Interro-negative form
Simple form
can't I abrade? can't you abrade? can't he abrade? can't we abrade? can't you abrade? can't they abrade?
V-ing form
can't I be abrading? can't you be abrading? can't he be abrading? can't we be abrading? can't you be abrading? can't they be abrading?
Perfect
can't I have abraded? can't you have abraded? can't he have abraded? can't we have abraded? can't you have abraded? can't they have abraded?
V-ing perfect
can't I have been abrading? can't you have been abrading? can't he have been abrading? can't we have been abrading? can't you have been abrading? can't they have been abrading?