must sermonise
Regular verb: sermonise - sermonised- sermonised

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must sermonise
you must sermonise
he must sermonise
we must sermonise
you must sermonise
they must sermonise 	I must be sermonising
you must be sermonising
he must be sermonising
we must be sermonising
you must be sermonising
they must be sermonising	I must have sermonised
you must have sermonised
he must have sermonised
we must have sermonised
you must have sermonised
they must have sermonised	I must have been sermonising
you must have been sermonising
he must have been sermonising
we must have been sermonising
you must have been sermonising
they must have been sermonising	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not sermonise
you must not sermonise
he must not sermonise
we must not sermonise
you must not sermonise
they must not sermonise 	I must not be sermonising
you must not be sermonising
he must not be sermonising
we must not be sermonising
you must not be sermonising
they must not be sermonising	I must not have sermonised
you must not have sermonised
he must not have sermonised
we must not have sermonised
you must not have sermonised
they must not have sermonised	I must not have been sermonising
you must not have been sermonising
he must not have been sermonising
we must not have been sermonising
you must not have been sermonising
they must not have been sermonising	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I sermonise?
must you sermonise?
must he sermonise?
must we sermonise?
must you sermonise?
must they sermonise? 	must I be sermonising?
must you be sermonising?
must he be sermonising?
must we be sermonising?
must you be sermonising?
must they be sermonising? 	must I have sermonised?
must you have sermonised?
must he have sermonised?
must we have sermonised?
must you have sermonised?
must they have sermonised? 	must I have been sermonising?
must you have been sermonising?
must he have been sermonising?
must we have been sermonising?
must you have been sermonising?
must they have been sermonising? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not sermonise?
must you not sermonise?
must he not sermonise?
must we not sermonise?
must you not sermonise?
must they not sermonise? 	must I not be sermonising?
must you not be sermonising?
must he not be sermonising?
must we not be sermonising?
must you not be sermonising?
must they not be sermonising? 	must I not have sermonised?
must you not have sermonised?
must he not have sermonised?
must we not have sermonised?
must you not have sermonised?
must they not have sermonised? 	must I not have been sermonising?
must you not have been sermonising?
must he not have been sermonising?
must we not have been sermonising?
must you not have been sermonising?
must they not have been sermonising?