English verb conjugation
MUST PERCOLATE

Regular verb: percolate - percolated - percolated

Affirmation

Simple form	V-ing form
I must percolate you must percolate he must percolate we must percolate you must percolate they must percolate	I must be percolating you must be percolating he must be percolating we must be percolating you must be percolating they must be percolating
Perfect	V-ing perfect
I must have percolated you must have percolated he must have percolated we must have percolated you must have percolated they must have percolated	I must have been percolating you must have been percolating he must have been percolating we must have been percolating you must have been percolating they must have been percolating

Negation

Simple form	V-ing form
I mustn't percolate you mustn't percolate he mustn't percolate we mustn't percolate you mustn't percolate they mustn't percolate	I mustn't be percolating you mustn't be percolating he mustn't be percolating we mustn't be percolating you mustn't be percolating they mustn't be percolating
Perfect	V-ing perfect
I mustn't have percolated you mustn't have percolated he mustn't have percolated we mustn't have percolated you mustn't have percolated they mustn't have percolated	I mustn't have been percolating you mustn't have been percolating he mustn't have been percolating we mustn't have been percolating you mustn't have been percolating they mustn't have been percolating

Interrogative form

Simple form	V-ing form
must I percolate? must you percolate? must he percolate? must we percolate? must you percolate? must they percolate?	must I be percolating? must you be percolating? must he be percolating? must we be percolating? must you be percolating? must they be percolating?
Perfect	V-ing perfect
must I have percolated? must you have percolated? must he have percolated? must we have percolated? must you have percolated? must they have percolated?	must I have been percolating? must you have been percolating? must he have been percolating? must we have been percolating? must you have been percolating? must they have been percolating?

Interro-negative form

Simple form	V-ing form
mustn't I percolate? mustn't you percolate? mustn't he percolate? mustn't we percolate? mustn't you percolate? mustn't they percolate?	mustn't I be percolating? mustn't you be percolating? mustn't he be percolating? mustn't we be percolating? mustn't you be percolating? mustn't they be percolating?
Perfect	V-ing perfect
mustn't I have percolated? mustn't you have percolated? mustn't he have percolated? mustn't we have percolated? mustn't you have percolated? mustn't they have percolated?	mustn't I have been percolating? mustn't you have been percolating? mustn't he have been percolating? mustn't we have been percolating? mustn't you have been percolating? mustn't they have been percolating?