must grouse
Verbe régulier : grouse - groused- groused
Traduction française : rouspéter - râler 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must grouse
you must grouse
she must grouse
we must grouse
you must grouse
they must grouse 	I must be grousing
you must be grousing
she must be grousing
we must be grousing
you must be grousing
they must be grousing	I must have groused
you must have groused
she must have groused
we must have groused
you must have groused
they must have groused	I must have been grousing
you must have been grousing
she must have been grousing
we must have been grousing
you must have been grousing
they must have been grousing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not grouse
you must not grouse
she must not grouse
we must not grouse
you must not grouse
they must not grouse 	I must not be grousing
you must not be grousing
she must not be grousing
we must not be grousing
you must not be grousing
they must not be grousing	I must not have groused
you must not have groused
she must not have groused
we must not have groused
you must not have groused
they must not have groused	I must not have been grousing
you must not have been grousing
she must not have been grousing
we must not have been grousing
you must not have been grousing
they must not have been grousing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I grouse?
must you grouse?
must she grouse?
must we grouse?
must you grouse?
must they grouse? 	must I be grousing?
must you be grousing?
must she be grousing?
must we be grousing?
must you be grousing?
must they be grousing? 	must I have groused?
must you have groused?
must she have groused?
must we have groused?
must you have groused?
must they have groused? 	must I have been grousing?
must you have been grousing?
must she have been grousing?
must we have been grousing?
must you have been grousing?
must they have been grousing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not grouse?
must you not grouse?
must she not grouse?
must we not grouse?
must you not grouse?
must they not grouse? 	must I not be grousing?
must you not be grousing?
must she not be grousing?
must we not be grousing?
must you not be grousing?
must they not be grousing? 	must I not have groused?
must you not have groused?
must she not have groused?
must we not have groused?
must you not have groused?
must they not have groused? 	must I not have been grousing?
must you not have been grousing?
must she not have been grousing?
must we not have been grousing?
must you not have been grousing?
must they not have been grousing?