I must precalculate you must precalculate he must precalculate we must precalculate you must precalculate they must precalculate
V-ing form
I must be precalculating you must be precalculating he must be precalculating we must be precalculating you must be precalculating they must be precalculating
Perfect
I must have precalculated you must have precalculated he must have precalculated we must have precalculated you must have precalculated they must have precalculated
V-ing perfect
I must have been precalculating you must have been precalculating he must have been precalculating we must have been precalculating you must have been precalculating they must have been precalculating
Negation
Simple form
I must not precalculate you must not precalculate he must not precalculate we must not precalculate you must not precalculate they must not precalculate
V-ing form
I must not be precalculating you must not be precalculating he must not be precalculating we must not be precalculating you must not be precalculating they must not be precalculating
Perfect
I must not have precalculated you must not have precalculated he must not have precalculated we must not have precalculated you must not have precalculated they must not have precalculated
V-ing perfect
I must not have been precalculating you must not have been precalculating he must not have been precalculating we must not have been precalculating you must not have been precalculating they must not have been precalculating
Interrogative form
Simple form
must I precalculate? must you precalculate? must he precalculate? must we precalculate? must you precalculate? must they precalculate?
V-ing form
must I be precalculating? must you be precalculating? must he be precalculating? must we be precalculating? must you be precalculating? must they be precalculating?
Perfect
must I have precalculated? must you have precalculated? must he have precalculated? must we have precalculated? must you have precalculated? must they have precalculated?
V-ing perfect
must I have been precalculating? must you have been precalculating? must he have been precalculating? must we have been precalculating? must you have been precalculating? must they have been precalculating?
Interro-negative form
Simple form
must I not precalculate? must you not precalculate? must he not precalculate? must we not precalculate? must you not precalculate? must they not precalculate?
V-ing form
must I not be precalculating? must you not be precalculating? must he not be precalculating? must we not be precalculating? must you not be precalculating? must they not be precalculating?
Perfect
must I not have precalculated? must you not have precalculated? must he not have precalculated? must we not have precalculated? must you not have precalculated? must they not have precalculated?
V-ing perfect
must I not have been precalculating? must you not have been precalculating? must he not have been precalculating? must we not have been precalculating? must you not have been precalculating? must they not have been precalculating?