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 mustn't apprehend you mustn't apprehend he mustn't apprehend we mustn't apprehend you mustn't apprehend they mustn't apprehend	I mustn't be apprehending you mustn't be apprehending he mustn't be apprehending we mustn't be apprehending you mustn't be apprehending they mustn't be apprehending
Perfect	V-ing perfect
I mustn't have apprehended you mustn't have apprehended he mustn't have apprehended we mustn't have apprehended you mustn't have apprehended they mustn't have apprehended	I mustn't have been apprehending you mustn't have been apprehending he mustn't have been apprehending we mustn't have been apprehending you mustn't have been apprehending they mustn't 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
mustn't I apprehend? mustn't you apprehend? mustn't he apprehend? mustn't we apprehend? mustn't you apprehend? mustn't they apprehend?	mustn't I be apprehending? mustn't you be apprehending? mustn't he be apprehending? mustn't we be apprehending? mustn't you be apprehending? mustn't they be apprehending?
Perfect	V-ing perfect
mustn't I have apprehended? mustn't you have apprehended? mustn't he have apprehended? mustn't we have apprehended? mustn't you have apprehended? mustn't they have apprehended?	mustn't I have been apprehending? mustn't you have been apprehending? mustn't he have been apprehending? mustn't we have been apprehending? mustn't you have been apprehending? mustn't they have been apprehending?