I must prerequire you must prerequire she must prerequire we must prerequire you must prerequire they must prerequire
V-ing form
I must be prerequiring you must be prerequiring she must be prerequiring we must be prerequiring you must be prerequiring they must be prerequiring
Perfect
I must have prerequired you must have prerequired she must have prerequired we must have prerequired you must have prerequired they must have prerequired
V-ing perfect
I must have been prerequiring you must have been prerequiring she must have been prerequiring we must have been prerequiring you must have been prerequiring they must have been prerequiring
Negation
Simple form
I must not prerequire you must not prerequire she must not prerequire we must not prerequire you must not prerequire they must not prerequire
V-ing form
I must not be prerequiring you must not be prerequiring she must not be prerequiring we must not be prerequiring you must not be prerequiring they must not be prerequiring
Perfect
I must not have prerequired you must not have prerequired she must not have prerequired we must not have prerequired you must not have prerequired they must not have prerequired
V-ing perfect
I must not have been prerequiring you must not have been prerequiring she must not have been prerequiring we must not have been prerequiring you must not have been prerequiring they must not have been prerequiring
Interrogative form
Simple form
must I prerequire? must you prerequire? must she prerequire? must we prerequire? must you prerequire? must they prerequire?
V-ing form
must I be prerequiring? must you be prerequiring? must she be prerequiring? must we be prerequiring? must you be prerequiring? must they be prerequiring?
Perfect
must I have prerequired? must you have prerequired? must she have prerequired? must we have prerequired? must you have prerequired? must they have prerequired?
V-ing perfect
must I have been prerequiring? must you have been prerequiring? must she have been prerequiring? must we have been prerequiring? must you have been prerequiring? must they have been prerequiring?
Interro-negative form
Simple form
must I not prerequire? must you not prerequire? must she not prerequire? must we not prerequire? must you not prerequire? must they not prerequire?
V-ing form
must I not be prerequiring? must you not be prerequiring? must she not be prerequiring? must we not be prerequiring? must you not be prerequiring? must they not be prerequiring?
Perfect
must I not have prerequired? must you not have prerequired? must she not have prerequired? must we not have prerequired? must you not have prerequired? must they not have prerequired?
V-ing perfect
must I not have been prerequiring? must you not have been prerequiring? must she not have been prerequiring? must we not have been prerequiring? must you not have been prerequiring? must they not have been prerequiring?