English verb conjugation
MUST ENRICH

Regular verb: enrich - enriched - enriched

Affirmation

Simple form	V-ing form
I must enrich you must enrich he must enrich we must enrich you must enrich they must enrich	I must be enriching you must be enriching he must be enriching we must be enriching you must be enriching they must be enriching
Perfect	V-ing perfect
I must have enriched you must have enriched he must have enriched we must have enriched you must have enriched they must have enriched	I must have been enriching you must have been enriching he must have been enriching we must have been enriching you must have been enriching they must have been enriching

Negation

Simple form	V-ing form
I mustn't enrich you mustn't enrich he mustn't enrich we mustn't enrich you mustn't enrich they mustn't enrich	I mustn't be enriching you mustn't be enriching he mustn't be enriching we mustn't be enriching you mustn't be enriching they mustn't be enriching
Perfect	V-ing perfect
I mustn't have enriched you mustn't have enriched he mustn't have enriched we mustn't have enriched you mustn't have enriched they mustn't have enriched	I mustn't have been enriching you mustn't have been enriching he mustn't have been enriching we mustn't have been enriching you mustn't have been enriching they mustn't have been enriching

Interrogative form

Simple form	V-ing form
must I enrich? must you enrich? must he enrich? must we enrich? must you enrich? must they enrich?	must I be enriching? must you be enriching? must he be enriching? must we be enriching? must you be enriching? must they be enriching?
Perfect	V-ing perfect
must I have enriched? must you have enriched? must he have enriched? must we have enriched? must you have enriched? must they have enriched?	must I have been enriching? must you have been enriching? must he have been enriching? must we have been enriching? must you have been enriching? must they have been enriching?

Interro-negative form

Simple form	V-ing form
mustn't I enrich? mustn't you enrich? mustn't he enrich? mustn't we enrich? mustn't you enrich? mustn't they enrich?	mustn't I be enriching? mustn't you be enriching? mustn't he be enriching? mustn't we be enriching? mustn't you be enriching? mustn't they be enriching?
Perfect	V-ing perfect
mustn't I have enriched? mustn't you have enriched? mustn't he have enriched? mustn't we have enriched? mustn't you have enriched? mustn't they have enriched?	mustn't I have been enriching? mustn't you have been enriching? mustn't he have been enriching? mustn't we have been enriching? mustn't you have been enriching? mustn't they have been enriching?