English verb conjugation
MUST SYNTHESISE

Regular verb: synthesise - synthesised - synthesised

Affirmation

Simple form	V-ing form
I must synthesise you must synthesise he must synthesise we must synthesise you must synthesise they must synthesise	I must be synthesising you must be synthesising he must be synthesising we must be synthesising you must be synthesising they must be synthesising
Perfect	V-ing perfect
I must have synthesised you must have synthesised he must have synthesised we must have synthesised you must have synthesised they must have synthesised	I must have been synthesising you must have been synthesising he must have been synthesising we must have been synthesising you must have been synthesising they must have been synthesising

Negation

Simple form	V-ing form
I mustn't synthesise you mustn't synthesise he mustn't synthesise we mustn't synthesise you mustn't synthesise they mustn't synthesise	I mustn't be synthesising you mustn't be synthesising he mustn't be synthesising we mustn't be synthesising you mustn't be synthesising they mustn't be synthesising
Perfect	V-ing perfect
I mustn't have synthesised you mustn't have synthesised he mustn't have synthesised we mustn't have synthesised you mustn't have synthesised they mustn't have synthesised	I mustn't have been synthesising you mustn't have been synthesising he mustn't have been synthesising we mustn't have been synthesising you mustn't have been synthesising they mustn't have been synthesising

Interrogative form

Simple form	V-ing form
must I synthesise? must you synthesise? must he synthesise? must we synthesise? must you synthesise? must they synthesise?	must I be synthesising? must you be synthesising? must he be synthesising? must we be synthesising? must you be synthesising? must they be synthesising?
Perfect	V-ing perfect
must I have synthesised? must you have synthesised? must he have synthesised? must we have synthesised? must you have synthesised? must they have synthesised?	must I have been synthesising? must you have been synthesising? must he have been synthesising? must we have been synthesising? must you have been synthesising? must they have been synthesising?

Interro-negative form

Simple form	V-ing form
mustn't I synthesise? mustn't you synthesise? mustn't he synthesise? mustn't we synthesise? mustn't you synthesise? mustn't they synthesise?	mustn't I be synthesising? mustn't you be synthesising? mustn't he be synthesising? mustn't we be synthesising? mustn't you be synthesising? mustn't they be synthesising?
Perfect	V-ing perfect
mustn't I have synthesised? mustn't you have synthesised? mustn't he have synthesised? mustn't we have synthesised? mustn't you have synthesised? mustn't they have synthesised?	mustn't I have been synthesising? mustn't you have been synthesising? mustn't he have been synthesising? mustn't we have been synthesising? mustn't you have been synthesising? mustn't they have been synthesising?