must trend
Regular verb: trend - trended- trended

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must trend
you must trend
he must trend
we must trend
you must trend
they must trend 	I must be trending
you must be trending
he must be trending
we must be trending
you must be trending
they must be trending	I must have trended
you must have trended
he must have trended
we must have trended
you must have trended
they must have trended	I must have been trending
you must have been trending
he must have been trending
we must have been trending
you must have been trending
they must have been trending	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't trend
you mustn't trend
he mustn't trend
we mustn't trend
you mustn't trend
they mustn't trend 	I mustn't be trending
you mustn't be trending
he mustn't be trending
we mustn't be trending
you mustn't be trending
they mustn't be trending	I mustn't have trended
you mustn't have trended
he mustn't have trended
we mustn't have trended
you mustn't have trended
they mustn't have trended	I mustn't have been trending
you mustn't have been trending
he mustn't have been trending
we mustn't have been trending
you mustn't have been trending
they mustn't have been trending	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I trend?
must you trend?
must he trend?
must we trend?
must you trend?
must they trend? 	must I be trending?
must you be trending?
must he be trending?
must we be trending?
must you be trending?
must they be trending? 	must I have trended?
must you have trended?
must he have trended?
must we have trended?
must you have trended?
must they have trended? 	must I have been trending?
must you have been trending?
must he have been trending?
must we have been trending?
must you have been trending?
must they have been trending? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I trend?
mustn't you trend?
mustn't he trend?
mustn't we trend?
mustn't you trend?
mustn't they trend? 	mustn't I be trending?
mustn't you be trending?
mustn't he be trending?
mustn't we be trending?
mustn't you be trending?
mustn't they be trending? 	mustn't I have trended?
mustn't you have trended?
mustn't he have trended?
mustn't we have trended?
mustn't you have trended?
mustn't they have trended? 	mustn't I have been trending?
mustn't you have been trending?
mustn't he have been trending?
mustn't we have been trending?
mustn't you have been trending?
mustn't they have been trending?