English verb conjugation
MUST BOGGLE

Regular verb: boggle - boggled - boggled

Affirmation

Simple form	V-ing form
I must boggle you must boggle she must boggle we must boggle you must boggle they must boggle	I must be boggling you must be boggling she must be boggling we must be boggling you must be boggling they must be boggling
Perfect	V-ing perfect
I must have boggled you must have boggled she must have boggled we must have boggled you must have boggled they must have boggled	I must have been boggling you must have been boggling she must have been boggling we must have been boggling you must have been boggling they must have been boggling

Negation

Simple form	V-ing form
I mustn't boggle you mustn't boggle she mustn't boggle we mustn't boggle you mustn't boggle they mustn't boggle	I mustn't be boggling you mustn't be boggling she mustn't be boggling we mustn't be boggling you mustn't be boggling they mustn't be boggling
Perfect	V-ing perfect
I mustn't have boggled you mustn't have boggled she mustn't have boggled we mustn't have boggled you mustn't have boggled they mustn't have boggled	I mustn't have been boggling you mustn't have been boggling she mustn't have been boggling we mustn't have been boggling you mustn't have been boggling they mustn't have been boggling

Interrogative form

Simple form	V-ing form
must I boggle? must you boggle? must she boggle? must we boggle? must you boggle? must they boggle?	must I be boggling? must you be boggling? must she be boggling? must we be boggling? must you be boggling? must they be boggling?
Perfect	V-ing perfect
must I have boggled? must you have boggled? must she have boggled? must we have boggled? must you have boggled? must they have boggled?	must I have been boggling? must you have been boggling? must she have been boggling? must we have been boggling? must you have been boggling? must they have been boggling?

Interro-negative form

Simple form	V-ing form
mustn't I boggle? mustn't you boggle? mustn't she boggle? mustn't we boggle? mustn't you boggle? mustn't they boggle?	mustn't I be boggling? mustn't you be boggling? mustn't she be boggling? mustn't we be boggling? mustn't you be boggling? mustn't they be boggling?
Perfect	V-ing perfect
mustn't I have boggled? mustn't you have boggled? mustn't she have boggled? mustn't we have boggled? mustn't you have boggled? mustn't they have boggled?	mustn't I have been boggling? mustn't you have been boggling? mustn't she have been boggling? mustn't we have been boggling? mustn't you have been boggling? mustn't they have been boggling?