must trifurcate
Verbo regular: trifurcate - trifurcated- trifurcated

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must trifurcate
you must trifurcate
he must trifurcate
we must trifurcate
you must trifurcate
they must trifurcate 	I must be trifurcating
you must be trifurcating
he must be trifurcating
we must be trifurcating
you must be trifurcating
they must be trifurcating	I must have trifurcated
you must have trifurcated
he must have trifurcated
we must have trifurcated
you must have trifurcated
they must have trifurcated	I must have been trifurcating
you must have been trifurcating
he must have been trifurcating
we must have been trifurcating
you must have been trifurcating
they must have been trifurcating	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not trifurcate
you must not trifurcate
he must not trifurcate
we must not trifurcate
you must not trifurcate
they must not trifurcate 	I must not be trifurcating
you must not be trifurcating
he must not be trifurcating
we must not be trifurcating
you must not be trifurcating
they must not be trifurcating	I must not have trifurcated
you must not have trifurcated
he must not have trifurcated
we must not have trifurcated
you must not have trifurcated
they must not have trifurcated	I must not have been trifurcating
you must not have been trifurcating
he must not have been trifurcating
we must not have been trifurcating
you must not have been trifurcating
they must not have been trifurcating	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I trifurcate?
must you trifurcate?
must he trifurcate?
must we trifurcate?
must you trifurcate?
must they trifurcate? 	must I be trifurcating?
must you be trifurcating?
must he be trifurcating?
must we be trifurcating?
must you be trifurcating?
must they be trifurcating? 	must I have trifurcated?
must you have trifurcated?
must he have trifurcated?
must we have trifurcated?
must you have trifurcated?
must they have trifurcated? 	must I have been trifurcating?
must you have been trifurcating?
must he have been trifurcating?
must we have been trifurcating?
must you have been trifurcating?
must they have been trifurcating? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not trifurcate?
must you not trifurcate?
must he not trifurcate?
must we not trifurcate?
must you not trifurcate?
must they not trifurcate? 	must I not be trifurcating?
must you not be trifurcating?
must he not be trifurcating?
must we not be trifurcating?
must you not be trifurcating?
must they not be trifurcating? 	must I not have trifurcated?
must you not have trifurcated?
must he not have trifurcated?
must we not have trifurcated?
must you not have trifurcated?
must they not have trifurcated? 	must I not have been trifurcating?
must you not have been trifurcating?
must he not have been trifurcating?
must we not have been trifurcating?
must you not have been trifurcating?
must they not have been trifurcating?