I can judge you can judge he can judge we can judge you can judge they can judge
V-ing form
I can be judging you can be judging he can be judging we can be judging you can be judging they can be judging
Perfect
I can have judged you can have judged he can have judged we can have judged you can have judged they can have judged
V-ing perfect
I can have been judging you can have been judging he can have been judging we can have been judging you can have been judging they can have been judging
Negation
Simple form
I cannot judge you cannot judge he cannot judge we cannot judge you cannot judge they cannot judge
V-ing form
I cannot be judging you cannot be judging he cannot be judging we cannot be judging you cannot be judging they cannot be judging
Perfect
I cannot have judged you cannot have judged he cannot have judged we cannot have judged you cannot have judged they cannot have judged
V-ing perfect
I cannot have been judging you cannot have been judging he cannot have been judging we cannot have been judging you cannot have been judging they cannot have been judging
Interrogative form
Simple form
can I judge? can you judge? can he judge? can we judge? can you judge? can they judge?
V-ing form
can I be judging? can you be judging? can he be judging? can we be judging? can you be judging? can they be judging?
Perfect
can I have judged? can you have judged? can he have judged? can we have judged? can you have judged? can they have judged?
V-ing perfect
can I have been judging? can you have been judging? can he have been judging? can we have been judging? can you have been judging? can they have been judging?
Interro-negative form
Simple form
can I not judge? can you not judge? can he not judge? can we not judge? can you not judge? can they not judge?
V-ing form
can I not be judging? can you not be judging? can he not be judging? can we not be judging? can you not be judging? can they not be judging?
Perfect
can I not have judged? can you not have judged? can he not have judged? can we not have judged? can you not have judged? can they not have judged?
V-ing perfect
can I not have been judging? can you not have been judging? can he not have been judging? can we not have been judging? can you not have been judging? can they not have been judging?