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 can't calibrate you can't calibrate he can't calibrate we can't calibrate you can't calibrate they can't calibrate
V-ing form
I can't be calibrating you can't be calibrating he can't be calibrating we can't be calibrating you can't be calibrating they can't be calibrating
Perfect
I can't have calibrated you can't have calibrated he can't have calibrated we can't have calibrated you can't have calibrated they can't have calibrated
V-ing perfect
I can't have been calibrating you can't have been calibrating he can't have been calibrating we can't have been calibrating you can't have been calibrating they can't 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't I calibrate? can't you calibrate? can't he calibrate? can't we calibrate? can't you calibrate? can't they calibrate?
V-ing form
can't I be calibrating? can't you be calibrating? can't he be calibrating? can't we be calibrating? can't you be calibrating? can't they be calibrating?
Perfect
can't I have calibrated? can't you have calibrated? can't he have calibrated? can't we have calibrated? can't you have calibrated? can't they have calibrated?
V-ing perfect
can't I have been calibrating? can't you have been calibrating? can't he have been calibrating? can't we have been calibrating? can't you have been calibrating? can't they have been calibrating?