English verb conjugation
MUST APPREHEND

Regular verb: apprehend - apprehended - apprehended

Affirmation

Simple form	V-ing form
I must apprehend you must apprehend he must apprehend we must apprehend you must apprehend they must apprehend	I must be apprehending you must be apprehending he must be apprehending we must be apprehending you must be apprehending they must be apprehending
Perfect	V-ing perfect
I must have apprehended you must have apprehended he must have apprehended we must have apprehended you must have apprehended they must have apprehended	I must have been apprehending you must have been apprehending he must have been apprehending we must have been apprehending you must have been apprehending they must have been apprehending

Negation

Simple form	V-ing form
I must not apprehend you must not apprehend he must not apprehend we must not apprehend you must not apprehend they must not apprehend	I must not be apprehending you must not be apprehending he must not be apprehending we must not be apprehending you must not be apprehending they must not be apprehending
Perfect	V-ing perfect
I must not have apprehended you must not have apprehended he must not have apprehended we must not have apprehended you must not have apprehended they must not have apprehended	I must not have been apprehending you must not have been apprehending he must not have been apprehending we must not have been apprehending you must not have been apprehending they must not have been apprehending

Interrogative form

Simple form	V-ing form
must I apprehend? must you apprehend? must he apprehend? must we apprehend? must you apprehend? must they apprehend?	must I be apprehending? must you be apprehending? must he be apprehending? must we be apprehending? must you be apprehending? must they be apprehending?
Perfect	V-ing perfect
must I have apprehended? must you have apprehended? must he have apprehended? must we have apprehended? must you have apprehended? must they have apprehended?	must I have been apprehending? must you have been apprehending? must he have been apprehending? must we have been apprehending? must you have been apprehending? must they have been apprehending?

Interro-negative form

Simple form	V-ing form
must I not apprehend? must you not apprehend? must he not apprehend? must we not apprehend? must you not apprehend? must they not apprehend?	must I not be apprehending? must you not be apprehending? must he not be apprehending? must we not be apprehending? must you not be apprehending? must they not be apprehending?
Perfect	V-ing perfect
must I not have apprehended? must you not have apprehended? must he not have apprehended? must we not have apprehended? must you not have apprehended? must they not have apprehended?	must I not have been apprehending? must you not have been apprehending? must he not have been apprehending? must we not have been apprehending? must you not have been apprehending? must they not have been apprehending?