must yoo-hoo
Verbe régulier : yoo-hoo - yoo-hooed- yoo-hooed

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must yoo-hoo
you must yoo-hoo
she must yoo-hoo
we must yoo-hoo
you must yoo-hoo
they must yoo-hoo 	I must be yoo-hooing
you must be yoo-hooing
she must be yoo-hooing
we must be yoo-hooing
you must be yoo-hooing
they must be yoo-hooing	I must have yoo-hooed
you must have yoo-hooed
she must have yoo-hooed
we must have yoo-hooed
you must have yoo-hooed
they must have yoo-hooed	I must have been yoo-hooing
you must have been yoo-hooing
she must have been yoo-hooing
we must have been yoo-hooing
you must have been yoo-hooing
they must have been yoo-hooing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not yoo-hoo
you must not yoo-hoo
she must not yoo-hoo
we must not yoo-hoo
you must not yoo-hoo
they must not yoo-hoo 	I must not be yoo-hooing
you must not be yoo-hooing
she must not be yoo-hooing
we must not be yoo-hooing
you must not be yoo-hooing
they must not be yoo-hooing	I must not have yoo-hooed
you must not have yoo-hooed
she must not have yoo-hooed
we must not have yoo-hooed
you must not have yoo-hooed
they must not have yoo-hooed	I must not have been yoo-hooing
you must not have been yoo-hooing
she must not have been yoo-hooing
we must not have been yoo-hooing
you must not have been yoo-hooing
they must not have been yoo-hooing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I yoo-hoo?
must you yoo-hoo?
must she yoo-hoo?
must we yoo-hoo?
must you yoo-hoo?
must they yoo-hoo? 	must I be yoo-hooing?
must you be yoo-hooing?
must she be yoo-hooing?
must we be yoo-hooing?
must you be yoo-hooing?
must they be yoo-hooing? 	must I have yoo-hooed?
must you have yoo-hooed?
must she have yoo-hooed?
must we have yoo-hooed?
must you have yoo-hooed?
must they have yoo-hooed? 	must I have been yoo-hooing?
must you have been yoo-hooing?
must she have been yoo-hooing?
must we have been yoo-hooing?
must you have been yoo-hooing?
must they have been yoo-hooing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not yoo-hoo?
must you not yoo-hoo?
must she not yoo-hoo?
must we not yoo-hoo?
must you not yoo-hoo?
must they not yoo-hoo? 	must I not be yoo-hooing?
must you not be yoo-hooing?
must she not be yoo-hooing?
must we not be yoo-hooing?
must you not be yoo-hooing?
must they not be yoo-hooing? 	must I not have yoo-hooed?
must you not have yoo-hooed?
must she not have yoo-hooed?
must we not have yoo-hooed?
must you not have yoo-hooed?
must they not have yoo-hooed? 	must I not have been yoo-hooing?
must you not have been yoo-hooing?
must she not have been yoo-hooing?
must we not have been yoo-hooing?
must you not have been yoo-hooing?
must they not have been yoo-hooing?