English verb conjugation
MUST CATECHISE

Regular verb: catechise - catechised - catechised

Affirmation

Simple form	V-ing form
I must catechise you must catechise he must catechise we must catechise you must catechise they must catechise	I must be catechising you must be catechising he must be catechising we must be catechising you must be catechising they must be catechising
Perfect	V-ing perfect
I must have catechised you must have catechised he must have catechised we must have catechised you must have catechised they must have catechised	I must have been catechising you must have been catechising he must have been catechising we must have been catechising you must have been catechising they must have been catechising

Negation

Simple form	V-ing form
I mustn't catechise you mustn't catechise he mustn't catechise we mustn't catechise you mustn't catechise they mustn't catechise	I mustn't be catechising you mustn't be catechising he mustn't be catechising we mustn't be catechising you mustn't be catechising they mustn't be catechising
Perfect	V-ing perfect
I mustn't have catechised you mustn't have catechised he mustn't have catechised we mustn't have catechised you mustn't have catechised they mustn't have catechised	I mustn't have been catechising you mustn't have been catechising he mustn't have been catechising we mustn't have been catechising you mustn't have been catechising they mustn't have been catechising

Interrogative form

Simple form	V-ing form
must I catechise? must you catechise? must he catechise? must we catechise? must you catechise? must they catechise?	must I be catechising? must you be catechising? must he be catechising? must we be catechising? must you be catechising? must they be catechising?
Perfect	V-ing perfect
must I have catechised? must you have catechised? must he have catechised? must we have catechised? must you have catechised? must they have catechised?	must I have been catechising? must you have been catechising? must he have been catechising? must we have been catechising? must you have been catechising? must they have been catechising?

Interro-negative form

Simple form	V-ing form
mustn't I catechise? mustn't you catechise? mustn't he catechise? mustn't we catechise? mustn't you catechise? mustn't they catechise?	mustn't I be catechising? mustn't you be catechising? mustn't he be catechising? mustn't we be catechising? mustn't you be catechising? mustn't they be catechising?
Perfect	V-ing perfect
mustn't I have catechised? mustn't you have catechised? mustn't he have catechised? mustn't we have catechised? mustn't you have catechised? mustn't they have catechised?	mustn't I have been catechising? mustn't you have been catechising? mustn't he have been catechising? mustn't we have been catechising? mustn't you have been catechising? mustn't they have been catechising?