I can castrate you can castrate she can castrate we can castrate you can castrate they can castrate
V-ing form
I can be castrating you can be castrating she can be castrating we can be castrating you can be castrating they can be castrating
Perfect
I can have castrated you can have castrated she can have castrated we can have castrated you can have castrated they can have castrated
V-ing perfect
I can have been castrating you can have been castrating she can have been castrating we can have been castrating you can have been castrating they can have been castrating
Negation
Simple form
I can't castrate you can't castrate she can't castrate we can't castrate you can't castrate they can't castrate
V-ing form
I can't be castrating you can't be castrating she can't be castrating we can't be castrating you can't be castrating they can't be castrating
Perfect
I can't have castrated you can't have castrated she can't have castrated we can't have castrated you can't have castrated they can't have castrated
V-ing perfect
I can't have been castrating you can't have been castrating she can't have been castrating we can't have been castrating you can't have been castrating they can't have been castrating
Interrogative form
Simple form
can I castrate? can you castrate? can she castrate? can we castrate? can you castrate? can they castrate?
V-ing form
can I be castrating? can you be castrating? can she be castrating? can we be castrating? can you be castrating? can they be castrating?
Perfect
can I have castrated? can you have castrated? can she have castrated? can we have castrated? can you have castrated? can they have castrated?
V-ing perfect
can I have been castrating? can you have been castrating? can she have been castrating? can we have been castrating? can you have been castrating? can they have been castrating?
Interro-negative form
Simple form
can't I castrate? can't you castrate? can't she castrate? can't we castrate? can't you castrate? can't they castrate?
V-ing form
can't I be castrating? can't you be castrating? can't she be castrating? can't we be castrating? can't you be castrating? can't they be castrating?
Perfect
can't I have castrated? can't you have castrated? can't she have castrated? can't we have castrated? can't you have castrated? can't they have castrated?
V-ing perfect
can't I have been castrating? can't you have been castrating? can't she have been castrating? can't we have been castrating? can't you have been castrating? can't they have been castrating?