English verb conjugation
SHOULD SYNTHESISE

Regular verb: synthesise - synthesised - synthesised

Affirmation

Simple form	V-ing form
I'd synthesise you'd synthesise he'd synthesise we'd synthesise you'd synthesise they'd synthesise	I'd be synthesising you'd be synthesising he'd be synthesising we'd be synthesising you'd be synthesising they'd be synthesising
Perfect	V-ing perfect
I should've synthesised you should've synthesised he should've synthesised we should've synthesised you should've synthesised they should've synthesised	I should've been synthesising you should've been synthesising he should've been synthesising we should've been synthesising you should've been synthesising they should've been synthesising

Negation

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

Interrogative form

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

Interro-negative form

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