I can examine you can examine he can examine we can examine you can examine they can examine
V-ing form
I can be examining you can be examining he can be examining we can be examining you can be examining they can be examining
Perfect
I can have examined you can have examined he can have examined we can have examined you can have examined they can have examined
V-ing perfect
I can have been examining you can have been examining he can have been examining we can have been examining you can have been examining they can have been examining
Negation
Simple form
I can't examine you can't examine he can't examine we can't examine you can't examine they can't examine
V-ing form
I can't be examining you can't be examining he can't be examining we can't be examining you can't be examining they can't be examining
Perfect
I can't have examined you can't have examined he can't have examined we can't have examined you can't have examined they can't have examined
V-ing perfect
I can't have been examining you can't have been examining he can't have been examining we can't have been examining you can't have been examining they can't have been examining
Interrogative form
Simple form
can I examine? can you examine? can he examine? can we examine? can you examine? can they examine?
V-ing form
can I be examining? can you be examining? can he be examining? can we be examining? can you be examining? can they be examining?
Perfect
can I have examined? can you have examined? can he have examined? can we have examined? can you have examined? can they have examined?
V-ing perfect
can I have been examining? can you have been examining? can he have been examining? can we have been examining? can you have been examining? can they have been examining?
Interro-negative form
Simple form
can't I examine? can't you examine? can't he examine? can't we examine? can't you examine? can't they examine?
V-ing form
can't I be examining? can't you be examining? can't he be examining? can't we be examining? can't you be examining? can't they be examining?
Perfect
can't I have examined? can't you have examined? can't he have examined? can't we have examined? can't you have examined? can't they have examined?
V-ing perfect
can't I have been examining? can't you have been examining? can't he have been examining? can't we have been examining? can't you have been examining? can't they have been examining?