must suffuse
Regular verb: suffuse - suffused- suffused

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must suffuse
you must suffuse
he must suffuse
we must suffuse
you must suffuse
they must suffuse 	I must be suffusing
you must be suffusing
he must be suffusing
we must be suffusing
you must be suffusing
they must be suffusing	I must have suffused
you must have suffused
he must have suffused
we must have suffused
you must have suffused
they must have suffused	I must have been suffusing
you must have been suffusing
he must have been suffusing
we must have been suffusing
you must have been suffusing
they must have been suffusing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not suffuse
you must not suffuse
he must not suffuse
we must not suffuse
you must not suffuse
they must not suffuse 	I must not be suffusing
you must not be suffusing
he must not be suffusing
we must not be suffusing
you must not be suffusing
they must not be suffusing	I must not have suffused
you must not have suffused
he must not have suffused
we must not have suffused
you must not have suffused
they must not have suffused	I must not have been suffusing
you must not have been suffusing
he must not have been suffusing
we must not have been suffusing
you must not have been suffusing
they must not have been suffusing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I suffuse?
must you suffuse?
must he suffuse?
must we suffuse?
must you suffuse?
must they suffuse? 	must I be suffusing?
must you be suffusing?
must he be suffusing?
must we be suffusing?
must you be suffusing?
must they be suffusing? 	must I have suffused?
must you have suffused?
must he have suffused?
must we have suffused?
must you have suffused?
must they have suffused? 	must I have been suffusing?
must you have been suffusing?
must he have been suffusing?
must we have been suffusing?
must you have been suffusing?
must they have been suffusing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not suffuse?
must you not suffuse?
must he not suffuse?
must we not suffuse?
must you not suffuse?
must they not suffuse? 	must I not be suffusing?
must you not be suffusing?
must he not be suffusing?
must we not be suffusing?
must you not be suffusing?
must they not be suffusing? 	must I not have suffused?
must you not have suffused?
must he not have suffused?
must we not have suffused?
must you not have suffused?
must they not have suffused? 	must I not have been suffusing?
must you not have been suffusing?
must he not have been suffusing?
must we not have been suffusing?
must you not have been suffusing?
must they not have been suffusing?