English verb conjugation
MUST SYNCHRONISE

Regular verb: synchronise - synchronised - synchronised

Affirmation

Simple form	V-ing form
I must synchronise you must synchronise he must synchronise we must synchronise you must synchronise they must synchronise	I must be synchronising you must be synchronising he must be synchronising we must be synchronising you must be synchronising they must be synchronising
Perfect	V-ing perfect
I must have synchronised you must have synchronised he must have synchronised we must have synchronised you must have synchronised they must have synchronised	I must have been synchronising you must have been synchronising he must have been synchronising we must have been synchronising you must have been synchronising they must have been synchronising

Negation

Simple form	V-ing form
I mustn't synchronise you mustn't synchronise he mustn't synchronise we mustn't synchronise you mustn't synchronise they mustn't synchronise	I mustn't be synchronising you mustn't be synchronising he mustn't be synchronising we mustn't be synchronising you mustn't be synchronising they mustn't be synchronising
Perfect	V-ing perfect
I mustn't have synchronised you mustn't have synchronised he mustn't have synchronised we mustn't have synchronised you mustn't have synchronised they mustn't have synchronised	I mustn't have been synchronising you mustn't have been synchronising he mustn't have been synchronising we mustn't have been synchronising you mustn't have been synchronising they mustn't have been synchronising

Interrogative form

Simple form	V-ing form
must I synchronise? must you synchronise? must he synchronise? must we synchronise? must you synchronise? must they synchronise?	must I be synchronising? must you be synchronising? must he be synchronising? must we be synchronising? must you be synchronising? must they be synchronising?
Perfect	V-ing perfect
must I have synchronised? must you have synchronised? must he have synchronised? must we have synchronised? must you have synchronised? must they have synchronised?	must I have been synchronising? must you have been synchronising? must he have been synchronising? must we have been synchronising? must you have been synchronising? must they have been synchronising?

Interro-negative form

Simple form	V-ing form
mustn't I synchronise? mustn't you synchronise? mustn't he synchronise? mustn't we synchronise? mustn't you synchronise? mustn't they synchronise?	mustn't I be synchronising? mustn't you be synchronising? mustn't he be synchronising? mustn't we be synchronising? mustn't you be synchronising? mustn't they be synchronising?
Perfect	V-ing perfect
mustn't I have synchronised? mustn't you have synchronised? mustn't he have synchronised? mustn't we have synchronised? mustn't you have synchronised? mustn't they have synchronised?	mustn't I have been synchronising? mustn't you have been synchronising? mustn't he have been synchronising? mustn't we have been synchronising? mustn't you have been synchronising? mustn't they have been synchronising?