must singularise
Regular verb: singularise - singularised- singularised

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must singularise
you must singularise
she must singularise
we must singularise
you must singularise
they must singularise 	I must be singularising
you must be singularising
she must be singularising
we must be singularising
you must be singularising
they must be singularising	I must have singularised
you must have singularised
she must have singularised
we must have singularised
you must have singularised
they must have singularised	I must have been singularising
you must have been singularising
she must have been singularising
we must have been singularising
you must have been singularising
they must have been singularising	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not singularise
you must not singularise
she must not singularise
we must not singularise
you must not singularise
they must not singularise 	I must not be singularising
you must not be singularising
she must not be singularising
we must not be singularising
you must not be singularising
they must not be singularising	I must not have singularised
you must not have singularised
she must not have singularised
we must not have singularised
you must not have singularised
they must not have singularised	I must not have been singularising
you must not have been singularising
she must not have been singularising
we must not have been singularising
you must not have been singularising
they must not have been singularising	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I singularise?
must you singularise?
must she singularise?
must we singularise?
must you singularise?
must they singularise? 	must I be singularising?
must you be singularising?
must she be singularising?
must we be singularising?
must you be singularising?
must they be singularising? 	must I have singularised?
must you have singularised?
must she have singularised?
must we have singularised?
must you have singularised?
must they have singularised? 	must I have been singularising?
must you have been singularising?
must she have been singularising?
must we have been singularising?
must you have been singularising?
must they have been singularising? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not singularise?
must you not singularise?
must she not singularise?
must we not singularise?
must you not singularise?
must they not singularise? 	must I not be singularising?
must you not be singularising?
must she not be singularising?
must we not be singularising?
must you not be singularising?
must they not be singularising? 	must I not have singularised?
must you not have singularised?
must she not have singularised?
must we not have singularised?
must you not have singularised?
must they not have singularised? 	must I not have been singularising?
must you not have been singularising?
must she not have been singularising?
must we not have been singularising?
must you not have been singularising?
must they not have been singularising?