must abound
Regular verb: abound - abounded- abounded

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must abound
you must abound
she must abound
we must abound
you must abound
they must abound 	I must be abounding
you must be abounding
she must be abounding
we must be abounding
you must be abounding
they must be abounding	I must have abounded
you must have abounded
she must have abounded
we must have abounded
you must have abounded
they must have abounded	I must have been abounding
you must have been abounding
she must have been abounding
we must have been abounding
you must have been abounding
they must have been abounding	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't abound
you mustn't abound
she mustn't abound
we mustn't abound
you mustn't abound
they mustn't abound 	I mustn't be abounding
you mustn't be abounding
she mustn't be abounding
we mustn't be abounding
you mustn't be abounding
they mustn't be abounding	I mustn't have abounded
you mustn't have abounded
she mustn't have abounded
we mustn't have abounded
you mustn't have abounded
they mustn't have abounded	I mustn't have been abounding
you mustn't have been abounding
she mustn't have been abounding
we mustn't have been abounding
you mustn't have been abounding
they mustn't have been abounding	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I abound?
must you abound?
must she abound?
must we abound?
must you abound?
must they abound? 	must I be abounding?
must you be abounding?
must she be abounding?
must we be abounding?
must you be abounding?
must they be abounding? 	must I have abounded?
must you have abounded?
must she have abounded?
must we have abounded?
must you have abounded?
must they have abounded? 	must I have been abounding?
must you have been abounding?
must she have been abounding?
must we have been abounding?
must you have been abounding?
must they have been abounding? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I abound?
mustn't you abound?
mustn't she abound?
mustn't we abound?
mustn't you abound?
mustn't they abound? 	mustn't I be abounding?
mustn't you be abounding?
mustn't she be abounding?
mustn't we be abounding?
mustn't you be abounding?
mustn't they be abounding? 	mustn't I have abounded?
mustn't you have abounded?
mustn't she have abounded?
mustn't we have abounded?
mustn't you have abounded?
mustn't they have abounded? 	mustn't I have been abounding?
mustn't you have been abounding?
mustn't she have been abounding?
mustn't we have been abounding?
mustn't you have been abounding?
mustn't they have been abounding?