must trellis
Regular verb: trellis - trellised- trellised

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must trellis
you must trellis
he must trellis
we must trellis
you must trellis
they must trellis 	I must be trellising
you must be trellising
he must be trellising
we must be trellising
you must be trellising
they must be trellising	I must have trellised
you must have trellised
he must have trellised
we must have trellised
you must have trellised
they must have trellised	I must have been trellising
you must have been trellising
he must have been trellising
we must have been trellising
you must have been trellising
they must have been trellising	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not trellis
you must not trellis
he must not trellis
we must not trellis
you must not trellis
they must not trellis 	I must not be trellising
you must not be trellising
he must not be trellising
we must not be trellising
you must not be trellising
they must not be trellising	I must not have trellised
you must not have trellised
he must not have trellised
we must not have trellised
you must not have trellised
they must not have trellised	I must not have been trellising
you must not have been trellising
he must not have been trellising
we must not have been trellising
you must not have been trellising
they must not have been trellising	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I trellis?
must you trellis?
must he trellis?
must we trellis?
must you trellis?
must they trellis? 	must I be trellising?
must you be trellising?
must he be trellising?
must we be trellising?
must you be trellising?
must they be trellising? 	must I have trellised?
must you have trellised?
must he have trellised?
must we have trellised?
must you have trellised?
must they have trellised? 	must I have been trellising?
must you have been trellising?
must he have been trellising?
must we have been trellising?
must you have been trellising?
must they have been trellising? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not trellis?
must you not trellis?
must he not trellis?
must we not trellis?
must you not trellis?
must they not trellis? 	must I not be trellising?
must you not be trellising?
must he not be trellising?
must we not be trellising?
must you not be trellising?
must they not be trellising? 	must I not have trellised?
must you not have trellised?
must he not have trellised?
must we not have trellised?
must you not have trellised?
must they not have trellised? 	must I not have been trellising?
must you not have been trellising?
must he not have been trellising?
must we not have been trellising?
must you not have been trellising?
must they not have been trellising?