English verb conjugation
MUST APPREHEND

Regular verb: apprehend - apprehended - apprehended

Affirmation

Simple form	V-ing form
I must apprehend you must apprehend she must apprehend we must apprehend you must apprehend they must apprehend	I must be apprehending you must be apprehending she 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 she 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 she 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 she 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 she 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 she 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 she 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 she apprehend? must we apprehend? must you apprehend? must they apprehend?	must I be apprehending? must you be apprehending? must she 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 she 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 she 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 she 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 she 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 she 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 she have been apprehending? mustn't we have been apprehending? mustn't you have been apprehending? mustn't they have been apprehending?