English verb conjugation
MUST SKYJACK

Regular verb: skyjack - skyjacked - skyjacked

Affirmation

Simple form	V-ing form
I must skyjack you must skyjack she must skyjack we must skyjack you must skyjack they must skyjack	I must be skyjacking you must be skyjacking she must be skyjacking we must be skyjacking you must be skyjacking they must be skyjacking
Perfect	V-ing perfect
I must have skyjacked you must have skyjacked she must have skyjacked we must have skyjacked you must have skyjacked they must have skyjacked	I must have been skyjacking you must have been skyjacking she must have been skyjacking we must have been skyjacking you must have been skyjacking they must have been skyjacking

Negation

Simple form	V-ing form
I mustn't skyjack you mustn't skyjack she mustn't skyjack we mustn't skyjack you mustn't skyjack they mustn't skyjack	I mustn't be skyjacking you mustn't be skyjacking she mustn't be skyjacking we mustn't be skyjacking you mustn't be skyjacking they mustn't be skyjacking
Perfect	V-ing perfect
I mustn't have skyjacked you mustn't have skyjacked she mustn't have skyjacked we mustn't have skyjacked you mustn't have skyjacked they mustn't have skyjacked	I mustn't have been skyjacking you mustn't have been skyjacking she mustn't have been skyjacking we mustn't have been skyjacking you mustn't have been skyjacking they mustn't have been skyjacking

Interrogative form

Simple form	V-ing form
must I skyjack? must you skyjack? must she skyjack? must we skyjack? must you skyjack? must they skyjack?	must I be skyjacking? must you be skyjacking? must she be skyjacking? must we be skyjacking? must you be skyjacking? must they be skyjacking?
Perfect	V-ing perfect
must I have skyjacked? must you have skyjacked? must she have skyjacked? must we have skyjacked? must you have skyjacked? must they have skyjacked?	must I have been skyjacking? must you have been skyjacking? must she have been skyjacking? must we have been skyjacking? must you have been skyjacking? must they have been skyjacking?

Interro-negative form

Simple form	V-ing form
mustn't I skyjack? mustn't you skyjack? mustn't she skyjack? mustn't we skyjack? mustn't you skyjack? mustn't they skyjack?	mustn't I be skyjacking? mustn't you be skyjacking? mustn't she be skyjacking? mustn't we be skyjacking? mustn't you be skyjacking? mustn't they be skyjacking?
Perfect	V-ing perfect
mustn't I have skyjacked? mustn't you have skyjacked? mustn't she have skyjacked? mustn't we have skyjacked? mustn't you have skyjacked? mustn't they have skyjacked?	mustn't I have been skyjacking? mustn't you have been skyjacking? mustn't she have been skyjacking? mustn't we have been skyjacking? mustn't you have been skyjacking? mustn't they have been skyjacking?