must synonymise
Regular verb: synonymise - synonymised- synonymised

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must synonymise
you must synonymise
she must synonymise
we must synonymise
you must synonymise
they must synonymise 	I must be synonymising
you must be synonymising
she must be synonymising
we must be synonymising
you must be synonymising
they must be synonymising	I must have synonymised
you must have synonymised
she must have synonymised
we must have synonymised
you must have synonymised
they must have synonymised	I must have been synonymising
you must have been synonymising
she must have been synonymising
we must have been synonymising
you must have been synonymising
they must have been synonymising	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not synonymise
you must not synonymise
she must not synonymise
we must not synonymise
you must not synonymise
they must not synonymise 	I must not be synonymising
you must not be synonymising
she must not be synonymising
we must not be synonymising
you must not be synonymising
they must not be synonymising	I must not have synonymised
you must not have synonymised
she must not have synonymised
we must not have synonymised
you must not have synonymised
they must not have synonymised	I must not have been synonymising
you must not have been synonymising
she must not have been synonymising
we must not have been synonymising
you must not have been synonymising
they must not have been synonymising	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I synonymise?
must you synonymise?
must she synonymise?
must we synonymise?
must you synonymise?
must they synonymise? 	must I be synonymising?
must you be synonymising?
must she be synonymising?
must we be synonymising?
must you be synonymising?
must they be synonymising? 	must I have synonymised?
must you have synonymised?
must she have synonymised?
must we have synonymised?
must you have synonymised?
must they have synonymised? 	must I have been synonymising?
must you have been synonymising?
must she have been synonymising?
must we have been synonymising?
must you have been synonymising?
must they have been synonymising? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not synonymise?
must you not synonymise?
must she not synonymise?
must we not synonymise?
must you not synonymise?
must they not synonymise? 	must I not be synonymising?
must you not be synonymising?
must she not be synonymising?
must we not be synonymising?
must you not be synonymising?
must they not be synonymising? 	must I not have synonymised?
must you not have synonymised?
must she not have synonymised?
must we not have synonymised?
must you not have synonymised?
must they not have synonymised? 	must I not have been synonymising?
must you not have been synonymising?
must she not have been synonymising?
must we not have been synonymising?
must you not have been synonymising?
must they not have been synonymising?