must effuse
Regular verb: effuse - effused- effused

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must effuse
you must effuse
he must effuse
we must effuse
you must effuse
they must effuse 	I must be effusing
you must be effusing
he must be effusing
we must be effusing
you must be effusing
they must be effusing	I must have effused
you must have effused
he must have effused
we must have effused
you must have effused
they must have effused	I must have been effusing
you must have been effusing
he must have been effusing
we must have been effusing
you must have been effusing
they must have been effusing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not effuse
you must not effuse
he must not effuse
we must not effuse
you must not effuse
they must not effuse 	I must not be effusing
you must not be effusing
he must not be effusing
we must not be effusing
you must not be effusing
they must not be effusing	I must not have effused
you must not have effused
he must not have effused
we must not have effused
you must not have effused
they must not have effused	I must not have been effusing
you must not have been effusing
he must not have been effusing
we must not have been effusing
you must not have been effusing
they must not have been effusing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I effuse?
must you effuse?
must he effuse?
must we effuse?
must you effuse?
must they effuse? 	must I be effusing?
must you be effusing?
must he be effusing?
must we be effusing?
must you be effusing?
must they be effusing? 	must I have effused?
must you have effused?
must he have effused?
must we have effused?
must you have effused?
must they have effused? 	must I have been effusing?
must you have been effusing?
must he have been effusing?
must we have been effusing?
must you have been effusing?
must they have been effusing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not effuse?
must you not effuse?
must he not effuse?
must we not effuse?
must you not effuse?
must they not effuse? 	must I not be effusing?
must you not be effusing?
must he not be effusing?
must we not be effusing?
must you not be effusing?
must they not be effusing? 	must I not have effused?
must you not have effused?
must he not have effused?
must we not have effused?
must you not have effused?
must they not have effused? 	must I not have been effusing?
must you not have been effusing?
must he not have been effusing?
must we not have been effusing?
must you not have been effusing?
must they not have been effusing?