I can subspecialize you can subspecialize he can subspecialize we can subspecialize you can subspecialize they can subspecialize
V-ing form
I can be subspecializing you can be subspecializing he can be subspecializing we can be subspecializing you can be subspecializing they can be subspecializing
Perfect
I can have subspecialized you can have subspecialized he can have subspecialized we can have subspecialized you can have subspecialized they can have subspecialized
V-ing perfect
I can have been subspecializing you can have been subspecializing he can have been subspecializing we can have been subspecializing you can have been subspecializing they can have been subspecializing
Negation
Simple form
I can't subspecialize you can't subspecialize he can't subspecialize we can't subspecialize you can't subspecialize they can't subspecialize
V-ing form
I can't be subspecializing you can't be subspecializing he can't be subspecializing we can't be subspecializing you can't be subspecializing they can't be subspecializing
Perfect
I can't have subspecialized you can't have subspecialized he can't have subspecialized we can't have subspecialized you can't have subspecialized they can't have subspecialized
V-ing perfect
I can't have been subspecializing you can't have been subspecializing he can't have been subspecializing we can't have been subspecializing you can't have been subspecializing they can't have been subspecializing
Interrogative form
Simple form
can I subspecialize? can you subspecialize? can he subspecialize? can we subspecialize? can you subspecialize? can they subspecialize?
V-ing form
can I be subspecializing? can you be subspecializing? can he be subspecializing? can we be subspecializing? can you be subspecializing? can they be subspecializing?
Perfect
can I have subspecialized? can you have subspecialized? can he have subspecialized? can we have subspecialized? can you have subspecialized? can they have subspecialized?
V-ing perfect
can I have been subspecializing? can you have been subspecializing? can he have been subspecializing? can we have been subspecializing? can you have been subspecializing? can they have been subspecializing?
Interro-negative form
Simple form
can't I subspecialize? can't you subspecialize? can't he subspecialize? can't we subspecialize? can't you subspecialize? can't they subspecialize?
V-ing form
can't I be subspecializing? can't you be subspecializing? can't he be subspecializing? can't we be subspecializing? can't you be subspecializing? can't they be subspecializing?
Perfect
can't I have subspecialized? can't you have subspecialized? can't he have subspecialized? can't we have subspecialized? can't you have subspecialized? can't they have subspecialized?
V-ing perfect
can't I have been subspecializing? can't you have been subspecializing? can't he have been subspecializing? can't we have been subspecializing? can't you have been subspecializing? can't they have been subspecializing?