I must procreate you must procreate she must procreate we must procreate you must procreate they must procreate
V-ing form
I must be procreating you must be procreating she must be procreating we must be procreating you must be procreating they must be procreating
Perfect
I must have procreated you must have procreated she must have procreated we must have procreated you must have procreated they must have procreated
V-ing perfect
I must have been procreating you must have been procreating she must have been procreating we must have been procreating you must have been procreating they must have been procreating
Negation
Simple form
I must not procreate you must not procreate she must not procreate we must not procreate you must not procreate they must not procreate
V-ing form
I must not be procreating you must not be procreating she must not be procreating we must not be procreating you must not be procreating they must not be procreating
Perfect
I must not have procreated you must not have procreated she must not have procreated we must not have procreated you must not have procreated they must not have procreated
V-ing perfect
I must not have been procreating you must not have been procreating she must not have been procreating we must not have been procreating you must not have been procreating they must not have been procreating
Interrogative form
Simple form
must I procreate? must you procreate? must she procreate? must we procreate? must you procreate? must they procreate?
V-ing form
must I be procreating? must you be procreating? must she be procreating? must we be procreating? must you be procreating? must they be procreating?
Perfect
must I have procreated? must you have procreated? must she have procreated? must we have procreated? must you have procreated? must they have procreated?
V-ing perfect
must I have been procreating? must you have been procreating? must she have been procreating? must we have been procreating? must you have been procreating? must they have been procreating?
Interro-negative form
Simple form
must I not procreate? must you not procreate? must she not procreate? must we not procreate? must you not procreate? must they not procreate?
V-ing form
must I not be procreating? must you not be procreating? must she not be procreating? must we not be procreating? must you not be procreating? must they not be procreating?
Perfect
must I not have procreated? must you not have procreated? must she not have procreated? must we not have procreated? must you not have procreated? must they not have procreated?
V-ing perfect
must I not have been procreating? must you not have been procreating? must she not have been procreating? must we not have been procreating? must you not have been procreating? must they not have been procreating?