can recalculate
Regular verb: recalculate - recalculated- recalculated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can recalculate
you can recalculate
he can recalculate
we can recalculate
you can recalculate
they can recalculate 	I can be recalculating
you can be recalculating
he can be recalculating
we can be recalculating
you can be recalculating
they can be recalculating	I can have recalculated
you can have recalculated
he can have recalculated
we can have recalculated
you can have recalculated
they can have recalculated	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 	V-ing form 	Perfect 	V-ing perfect 	
I cannot recalculate
you cannot recalculate
he cannot recalculate
we cannot recalculate
you cannot recalculate
they cannot recalculate 	I cannot be recalculating
you cannot be recalculating
he cannot be recalculating
we cannot be recalculating
you cannot be recalculating
they cannot be recalculating	I cannot have recalculated
you cannot have recalculated
he cannot have recalculated
we cannot have recalculated
you cannot have recalculated
they cannot have recalculated	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 	V-ing form 	Perfect 	V-ing perfect 	
can I recalculate?
can you recalculate?
can he recalculate?
can we recalculate?
can you recalculate?
can they recalculate? 	can I be recalculating?
can you be recalculating?
can he be recalculating?
can we be recalculating?
can you be recalculating?
can they be recalculating? 	can I have recalculated?
can you have recalculated?
can he have recalculated?
can we have recalculated?
can you have recalculated?
can they have recalculated? 	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 	V-ing form 	Perfect 	V-ing perfect 	
can I not recalculate?
can you not recalculate?
can he not recalculate?
can we not recalculate?
can you not recalculate?
can they not recalculate? 	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? 	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? 	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?