I can calibrate you can calibrate he can calibrate we can calibrate you can calibrate they can calibrate
V-ing form
I can be calibrating you can be calibrating he can be calibrating we can be calibrating you can be calibrating they can be calibrating
Perfect
I can have calibrated you can have calibrated he can have calibrated we can have calibrated you can have calibrated they can have calibrated
V-ing perfect
I can have been calibrating you can have been calibrating he can have been calibrating we can have been calibrating you can have been calibrating they can have been calibrating
Negation
Simple form
I cannot calibrate you cannot calibrate he cannot calibrate we cannot calibrate you cannot calibrate they cannot calibrate
V-ing form
I cannot be calibrating you cannot be calibrating he cannot be calibrating we cannot be calibrating you cannot be calibrating they cannot be calibrating
Perfect
I cannot have calibrated you cannot have calibrated he cannot have calibrated we cannot have calibrated you cannot have calibrated they cannot have calibrated
V-ing perfect
I cannot have been calibrating you cannot have been calibrating he cannot have been calibrating we cannot have been calibrating you cannot have been calibrating they cannot have been calibrating
Interrogative form
Simple form
can I calibrate? can you calibrate? can he calibrate? can we calibrate? can you calibrate? can they calibrate?
V-ing form
can I be calibrating? can you be calibrating? can he be calibrating? can we be calibrating? can you be calibrating? can they be calibrating?
Perfect
can I have calibrated? can you have calibrated? can he have calibrated? can we have calibrated? can you have calibrated? can they have calibrated?
V-ing perfect
can I have been calibrating? can you have been calibrating? can he have been calibrating? can we have been calibrating? can you have been calibrating? can they have been calibrating?
Interro-negative form
Simple form
can I not calibrate? can you not calibrate? can he not calibrate? can we not calibrate? can you not calibrate? can they not calibrate?
V-ing form
can I not be calibrating? can you not be calibrating? can he not be calibrating? can we not be calibrating? can you not be calibrating? can they not be calibrating?
Perfect
can I not have calibrated? can you not have calibrated? can he not have calibrated? can we not have calibrated? can you not have calibrated? can they not have calibrated?
V-ing perfect
can I not have been calibrating? can you not have been calibrating? can he not have been calibrating? can we not have been calibrating? can you not have been calibrating? can they not have been calibrating?