I can cerebrate you can cerebrate he can cerebrate we can cerebrate you can cerebrate they can cerebrate
V-ing form
I can be cerebrating you can be cerebrating he can be cerebrating we can be cerebrating you can be cerebrating they can be cerebrating
Perfect
I can have cerebrated you can have cerebrated he can have cerebrated we can have cerebrated you can have cerebrated they can have cerebrated
V-ing perfect
I can have been cerebrating you can have been cerebrating he can have been cerebrating we can have been cerebrating you can have been cerebrating they can have been cerebrating
Negation
Simple form
I cannot cerebrate you cannot cerebrate he cannot cerebrate we cannot cerebrate you cannot cerebrate they cannot cerebrate
V-ing form
I cannot be cerebrating you cannot be cerebrating he cannot be cerebrating we cannot be cerebrating you cannot be cerebrating they cannot be cerebrating
Perfect
I cannot have cerebrated you cannot have cerebrated he cannot have cerebrated we cannot have cerebrated you cannot have cerebrated they cannot have cerebrated
V-ing perfect
I cannot have been cerebrating you cannot have been cerebrating he cannot have been cerebrating we cannot have been cerebrating you cannot have been cerebrating they cannot have been cerebrating
Interrogative form
Simple form
can I cerebrate? can you cerebrate? can he cerebrate? can we cerebrate? can you cerebrate? can they cerebrate?
V-ing form
can I be cerebrating? can you be cerebrating? can he be cerebrating? can we be cerebrating? can you be cerebrating? can they be cerebrating?
Perfect
can I have cerebrated? can you have cerebrated? can he have cerebrated? can we have cerebrated? can you have cerebrated? can they have cerebrated?
V-ing perfect
can I have been cerebrating? can you have been cerebrating? can he have been cerebrating? can we have been cerebrating? can you have been cerebrating? can they have been cerebrating?
Interro-negative form
Simple form
can I not cerebrate? can you not cerebrate? can he not cerebrate? can we not cerebrate? can you not cerebrate? can they not cerebrate?
V-ing form
can I not be cerebrating? can you not be cerebrating? can he not be cerebrating? can we not be cerebrating? can you not be cerebrating? can they not be cerebrating?
Perfect
can I not have cerebrated? can you not have cerebrated? can he not have cerebrated? can we not have cerebrated? can you not have cerebrated? can they not have cerebrated?
V-ing perfect
can I not have been cerebrating? can you not have been cerebrating? can he not have been cerebrating? can we not have been cerebrating? can you not have been cerebrating? can they not have been cerebrating?