I may precondition you may precondition he may precondition we may precondition you may precondition they may precondition
V-ing form
I may be preconditioning you may be preconditioning he may be preconditioning we may be preconditioning you may be preconditioning they may be preconditioning
Perfect
I may have preconditioned you may have preconditioned he may have preconditioned we may have preconditioned you may have preconditioned they may have preconditioned
V-ing perfect
I may have been preconditioning you may have been preconditioning he may have been preconditioning we may have been preconditioning you may have been preconditioning they may have been preconditioning
Negation
Simple form
I mayn't precondition you mayn't precondition he mayn't precondition we mayn't precondition you mayn't precondition they mayn't precondition
V-ing form
I mayn't be preconditioning you mayn't be preconditioning he mayn't be preconditioning we mayn't be preconditioning you mayn't be preconditioning they mayn't be preconditioning
Perfect
I mayn't have preconditioned you mayn't have preconditioned he mayn't have preconditioned we mayn't have preconditioned you mayn't have preconditioned they mayn't have preconditioned
V-ing perfect
I mayn't have been preconditioning you mayn't have been preconditioning he mayn't have been preconditioning we mayn't have been preconditioning you mayn't have been preconditioning they mayn't have been preconditioning
Interrogative form
Simple form
may I precondition? may you precondition? may he precondition? may we precondition? may you precondition? may they precondition?
V-ing form
may I be preconditioning? may you be preconditioning? may he be preconditioning? may we be preconditioning? may you be preconditioning? may they be preconditioning?
Perfect
may I have preconditioned? may you have preconditioned? may he have preconditioned? may we have preconditioned? may you have preconditioned? may they have preconditioned?
V-ing perfect
may I have been preconditioning? may you have been preconditioning? may he have been preconditioning? may we have been preconditioning? may you have been preconditioning? may they have been preconditioning?
Interro-negative form
Simple form
mayn't I precondition? mayn't you precondition? mayn't he precondition? mayn't we precondition? mayn't you precondition? mayn't they precondition?
V-ing form
mayn't I be preconditioning? mayn't you be preconditioning? mayn't he be preconditioning? mayn't we be preconditioning? mayn't you be preconditioning? mayn't they be preconditioning?
Perfect
mayn't I have preconditioned? mayn't you have preconditioned? mayn't he have preconditioned? mayn't we have preconditioned? mayn't you have preconditioned? mayn't they have preconditioned?
V-ing perfect
mayn't I have been preconditioning? mayn't you have been preconditioning? mayn't he have been preconditioning? mayn't we have been preconditioning? mayn't you have been preconditioning? mayn't they have been preconditioning?