I can recalculate you can recalculate he can recalculate we can recalculate you can recalculate they can recalculate
V-ing form
I can be recalculating you can be recalculating he can be recalculating we can be recalculating you can be recalculating they can be recalculating
Perfect
I can have recalculated you can have recalculated he can have recalculated we can have recalculated you can have recalculated they can have recalculated
V-ing perfect
I can have been recalculating you can have been recalculating he can have been recalculating we can have been recalculating you can have been recalculating they can have been recalculating
Negation
Simple form
I cannot recalculate you cannot recalculate he cannot recalculate we cannot recalculate you cannot recalculate they cannot recalculate
V-ing form
I cannot be recalculating you cannot be recalculating he cannot be recalculating we cannot be recalculating you cannot be recalculating they cannot be recalculating
Perfect
I cannot have recalculated you cannot have recalculated he cannot have recalculated we cannot have recalculated you cannot have recalculated they cannot have recalculated
V-ing perfect
I cannot have been recalculating you cannot have been recalculating he cannot have been recalculating we cannot have been recalculating you cannot have been recalculating they cannot have been recalculating
Interrogative form
Simple form
can I recalculate? can you recalculate? can he recalculate? can we recalculate? can you recalculate? can they recalculate?
V-ing form
can I be recalculating? can you be recalculating? can he be recalculating? can we be recalculating? can you be recalculating? can they be recalculating?
Perfect
can I have recalculated? can you have recalculated? can he have recalculated? can we have recalculated? can you have recalculated? can they have recalculated?
V-ing perfect
can I have been recalculating? can you have been recalculating? can he have been recalculating? can we have been recalculating? can you have been recalculating? can they have been recalculating?
Interro-negative form
Simple form
can I not recalculate? can you not recalculate? can he not recalculate? can we not recalculate? can you not recalculate? can they not recalculate?
V-ing form
can I not be recalculating? can you not be recalculating? can he not be recalculating? can we not be recalculating? can you not be recalculating? can they not be recalculating?
Perfect
can I not have recalculated? can you not have recalculated? can he not have recalculated? can we not have recalculated? can you not have recalculated? can they not have recalculated?
V-ing perfect
can I not have been recalculating? can you not have been recalculating? can he not have been recalculating? can we not have been recalculating? can you not have been recalculating? can they not have been recalculating?