I must precondition you must precondition he must precondition we must precondition you must precondition they must precondition
V-ing form
I must be preconditioning you must be preconditioning he must be preconditioning we must be preconditioning you must be preconditioning they must be preconditioning
Perfect
I must have preconditioned you must have preconditioned he must have preconditioned we must have preconditioned you must have preconditioned they must have preconditioned
V-ing perfect
I must have been preconditioning you must have been preconditioning he must have been preconditioning we must have been preconditioning you must have been preconditioning they must have been preconditioning
Negation
Simple form
I must not precondition you must not precondition he must not precondition we must not precondition you must not precondition they must not precondition
V-ing form
I must not be preconditioning you must not be preconditioning he must not be preconditioning we must not be preconditioning you must not be preconditioning they must not be preconditioning
Perfect
I must not have preconditioned you must not have preconditioned he must not have preconditioned we must not have preconditioned you must not have preconditioned they must not have preconditioned
V-ing perfect
I must not have been preconditioning you must not have been preconditioning he must not have been preconditioning we must not have been preconditioning you must not have been preconditioning they must not have been preconditioning
Interrogative form
Simple form
must I precondition? must you precondition? must he precondition? must we precondition? must you precondition? must they precondition?
V-ing form
must I be preconditioning? must you be preconditioning? must he be preconditioning? must we be preconditioning? must you be preconditioning? must they be preconditioning?
Perfect
must I have preconditioned? must you have preconditioned? must he have preconditioned? must we have preconditioned? must you have preconditioned? must they have preconditioned?
V-ing perfect
must I have been preconditioning? must you have been preconditioning? must he have been preconditioning? must we have been preconditioning? must you have been preconditioning? must they have been preconditioning?
Interro-negative form
Simple form
must I not precondition? must you not precondition? must he not precondition? must we not precondition? must you not precondition? must they not precondition?
V-ing form
must I not be preconditioning? must you not be preconditioning? must he not be preconditioning? must we not be preconditioning? must you not be preconditioning? must they not be preconditioning?
Perfect
must I not have preconditioned? must you not have preconditioned? must he not have preconditioned? must we not have preconditioned? must you not have preconditioned? must they not have preconditioned?
V-ing perfect
must I not have been preconditioning? must you not have been preconditioning? must he not have been preconditioning? must we not have been preconditioning? must you not have been preconditioning? must they not have been preconditioning?