must lavish
Regular verb: lavish - lavished- lavished

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must lavish
you must lavish
he must lavish
we must lavish
you must lavish
they must lavish 	I must be lavishing
you must be lavishing
he must be lavishing
we must be lavishing
you must be lavishing
they must be lavishing	I must have lavished
you must have lavished
he must have lavished
we must have lavished
you must have lavished
they must have lavished	I must have been lavishing
you must have been lavishing
he must have been lavishing
we must have been lavishing
you must have been lavishing
they must have been lavishing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not lavish
you must not lavish
he must not lavish
we must not lavish
you must not lavish
they must not lavish 	I must not be lavishing
you must not be lavishing
he must not be lavishing
we must not be lavishing
you must not be lavishing
they must not be lavishing	I must not have lavished
you must not have lavished
he must not have lavished
we must not have lavished
you must not have lavished
they must not have lavished	I must not have been lavishing
you must not have been lavishing
he must not have been lavishing
we must not have been lavishing
you must not have been lavishing
they must not have been lavishing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I lavish?
must you lavish?
must he lavish?
must we lavish?
must you lavish?
must they lavish? 	must I be lavishing?
must you be lavishing?
must he be lavishing?
must we be lavishing?
must you be lavishing?
must they be lavishing? 	must I have lavished?
must you have lavished?
must he have lavished?
must we have lavished?
must you have lavished?
must they have lavished? 	must I have been lavishing?
must you have been lavishing?
must he have been lavishing?
must we have been lavishing?
must you have been lavishing?
must they have been lavishing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not lavish?
must you not lavish?
must he not lavish?
must we not lavish?
must you not lavish?
must they not lavish? 	must I not be lavishing?
must you not be lavishing?
must he not be lavishing?
must we not be lavishing?
must you not be lavishing?
must they not be lavishing? 	must I not have lavished?
must you not have lavished?
must he not have lavished?
must we not have lavished?
must you not have lavished?
must they not have lavished? 	must I not have been lavishing?
must you not have been lavishing?
must he not have been lavishing?
must we not have been lavishing?
must you not have been lavishing?
must they not have been lavishing?