I must propagate you must propagate he must propagate we must propagate you must propagate they must propagate
V-ing form
I must be propagating you must be propagating he must be propagating we must be propagating you must be propagating they must be propagating
Perfect
I must have propagated you must have propagated he must have propagated we must have propagated you must have propagated they must have propagated
V-ing perfect
I must have been propagating you must have been propagating he must have been propagating we must have been propagating you must have been propagating they must have been propagating
Negation
Simple form
I must not propagate you must not propagate he must not propagate we must not propagate you must not propagate they must not propagate
V-ing form
I must not be propagating you must not be propagating he must not be propagating we must not be propagating you must not be propagating they must not be propagating
Perfect
I must not have propagated you must not have propagated he must not have propagated we must not have propagated you must not have propagated they must not have propagated
V-ing perfect
I must not have been propagating you must not have been propagating he must not have been propagating we must not have been propagating you must not have been propagating they must not have been propagating
Interrogative form
Simple form
must I propagate? must you propagate? must he propagate? must we propagate? must you propagate? must they propagate?
V-ing form
must I be propagating? must you be propagating? must he be propagating? must we be propagating? must you be propagating? must they be propagating?
Perfect
must I have propagated? must you have propagated? must he have propagated? must we have propagated? must you have propagated? must they have propagated?
V-ing perfect
must I have been propagating? must you have been propagating? must he have been propagating? must we have been propagating? must you have been propagating? must they have been propagating?
Interro-negative form
Simple form
must I not propagate? must you not propagate? must he not propagate? must we not propagate? must you not propagate? must they not propagate?
V-ing form
must I not be propagating? must you not be propagating? must he not be propagating? must we not be propagating? must you not be propagating? must they not be propagating?
Perfect
must I not have propagated? must you not have propagated? must he not have propagated? must we not have propagated? must you not have propagated? must they not have propagated?
V-ing perfect
must I not have been propagating? must you not have been propagating? must he not have been propagating? must we not have been propagating? must you not have been propagating? must they not have been propagating?