English verb conjugation
MUST METASTASIZE

Regular verb: metastasize - metastasized - metastasized

Affirmation

Simple form	V-ing form
I must metastasize you must metastasize he must metastasize we must metastasize you must metastasize they must metastasize	I must be metastasizing you must be metastasizing he must be metastasizing we must be metastasizing you must be metastasizing they must be metastasizing
Perfect	V-ing perfect
I must have metastasized you must have metastasized he must have metastasized we must have metastasized you must have metastasized they must have metastasized	I must have been metastasizing you must have been metastasizing he must have been metastasizing we must have been metastasizing you must have been metastasizing they must have been metastasizing

Negation

Simple form	V-ing form
I mustn't metastasize you mustn't metastasize he mustn't metastasize we mustn't metastasize you mustn't metastasize they mustn't metastasize	I mustn't be metastasizing you mustn't be metastasizing he mustn't be metastasizing we mustn't be metastasizing you mustn't be metastasizing they mustn't be metastasizing
Perfect	V-ing perfect
I mustn't have metastasized you mustn't have metastasized he mustn't have metastasized we mustn't have metastasized you mustn't have metastasized they mustn't have metastasized	I mustn't have been metastasizing you mustn't have been metastasizing he mustn't have been metastasizing we mustn't have been metastasizing you mustn't have been metastasizing they mustn't have been metastasizing

Interrogative form

Simple form	V-ing form
must I metastasize? must you metastasize? must he metastasize? must we metastasize? must you metastasize? must they metastasize?	must I be metastasizing? must you be metastasizing? must he be metastasizing? must we be metastasizing? must you be metastasizing? must they be metastasizing?
Perfect	V-ing perfect
must I have metastasized? must you have metastasized? must he have metastasized? must we have metastasized? must you have metastasized? must they have metastasized?	must I have been metastasizing? must you have been metastasizing? must he have been metastasizing? must we have been metastasizing? must you have been metastasizing? must they have been metastasizing?

Interro-negative form

Simple form	V-ing form
mustn't I metastasize? mustn't you metastasize? mustn't he metastasize? mustn't we metastasize? mustn't you metastasize? mustn't they metastasize?	mustn't I be metastasizing? mustn't you be metastasizing? mustn't he be metastasizing? mustn't we be metastasizing? mustn't you be metastasizing? mustn't they be metastasizing?
Perfect	V-ing perfect
mustn't I have metastasized? mustn't you have metastasized? mustn't he have metastasized? mustn't we have metastasized? mustn't you have metastasized? mustn't they have metastasized?	mustn't I have been metastasizing? mustn't you have been metastasizing? mustn't he have been metastasizing? mustn't we have been metastasizing? mustn't you have been metastasizing? mustn't they have been metastasizing?