English verb conjugation
MUST THUMB-INDEX

Regular verb: thumb-index - thumb-indexed - thumb-indexed

Affirmation

Simple form	V-ing form
I must thumb-index you must thumb-index he must thumb-index we must thumb-index you must thumb-index they must thumb-index	I must be thumb-indexing you must be thumb-indexing he must be thumb-indexing we must be thumb-indexing you must be thumb-indexing they must be thumb-indexing
Perfect	V-ing perfect
I must have thumb-indexed you must have thumb-indexed he must have thumb-indexed we must have thumb-indexed you must have thumb-indexed they must have thumb-indexed	I must have been thumb-indexing you must have been thumb-indexing he must have been thumb-indexing we must have been thumb-indexing you must have been thumb-indexing they must have been thumb-indexing

Negation

Simple form	V-ing form
I mustn't thumb-index you mustn't thumb-index he mustn't thumb-index we mustn't thumb-index you mustn't thumb-index they mustn't thumb-index	I mustn't be thumb-indexing you mustn't be thumb-indexing he mustn't be thumb-indexing we mustn't be thumb-indexing you mustn't be thumb-indexing they mustn't be thumb-indexing
Perfect	V-ing perfect
I mustn't have thumb-indexed you mustn't have thumb-indexed he mustn't have thumb-indexed we mustn't have thumb-indexed you mustn't have thumb-indexed they mustn't have thumb-indexed	I mustn't have been thumb-indexing you mustn't have been thumb-indexing he mustn't have been thumb-indexing we mustn't have been thumb-indexing you mustn't have been thumb-indexing they mustn't have been thumb-indexing

Interrogative form

Simple form	V-ing form
must I thumb-index? must you thumb-index? must he thumb-index? must we thumb-index? must you thumb-index? must they thumb-index?	must I be thumb-indexing? must you be thumb-indexing? must he be thumb-indexing? must we be thumb-indexing? must you be thumb-indexing? must they be thumb-indexing?
Perfect	V-ing perfect
must I have thumb-indexed? must you have thumb-indexed? must he have thumb-indexed? must we have thumb-indexed? must you have thumb-indexed? must they have thumb-indexed?	must I have been thumb-indexing? must you have been thumb-indexing? must he have been thumb-indexing? must we have been thumb-indexing? must you have been thumb-indexing? must they have been thumb-indexing?

Interro-negative form

Simple form	V-ing form
mustn't I thumb-index? mustn't you thumb-index? mustn't he thumb-index? mustn't we thumb-index? mustn't you thumb-index? mustn't they thumb-index?	mustn't I be thumb-indexing? mustn't you be thumb-indexing? mustn't he be thumb-indexing? mustn't we be thumb-indexing? mustn't you be thumb-indexing? mustn't they be thumb-indexing?
Perfect	V-ing perfect
mustn't I have thumb-indexed? mustn't you have thumb-indexed? mustn't he have thumb-indexed? mustn't we have thumb-indexed? mustn't you have thumb-indexed? mustn't they have thumb-indexed?	mustn't I have been thumb-indexing? mustn't you have been thumb-indexing? mustn't he have been thumb-indexing? mustn't we have been thumb-indexing? mustn't you have been thumb-indexing? mustn't they have been thumb-indexing?