English verb conjugation
MUST SCABBLE

Regular verb: scabble - scabbled - scabbled

Affirmation

Simple form	V-ing form
I must scabble you must scabble he must scabble we must scabble you must scabble they must scabble	I must be scabbling you must be scabbling he must be scabbling we must be scabbling you must be scabbling they must be scabbling
Perfect	V-ing perfect
I must have scabbled you must have scabbled he must have scabbled we must have scabbled you must have scabbled they must have scabbled	I must have been scabbling you must have been scabbling he must have been scabbling we must have been scabbling you must have been scabbling they must have been scabbling

Negation

Simple form	V-ing form
I mustn't scabble you mustn't scabble he mustn't scabble we mustn't scabble you mustn't scabble they mustn't scabble	I mustn't be scabbling you mustn't be scabbling he mustn't be scabbling we mustn't be scabbling you mustn't be scabbling they mustn't be scabbling
Perfect	V-ing perfect
I mustn't have scabbled you mustn't have scabbled he mustn't have scabbled we mustn't have scabbled you mustn't have scabbled they mustn't have scabbled	I mustn't have been scabbling you mustn't have been scabbling he mustn't have been scabbling we mustn't have been scabbling you mustn't have been scabbling they mustn't have been scabbling

Interrogative form

Simple form	V-ing form
must I scabble? must you scabble? must he scabble? must we scabble? must you scabble? must they scabble?	must I be scabbling? must you be scabbling? must he be scabbling? must we be scabbling? must you be scabbling? must they be scabbling?
Perfect	V-ing perfect
must I have scabbled? must you have scabbled? must he have scabbled? must we have scabbled? must you have scabbled? must they have scabbled?	must I have been scabbling? must you have been scabbling? must he have been scabbling? must we have been scabbling? must you have been scabbling? must they have been scabbling?

Interro-negative form

Simple form	V-ing form
mustn't I scabble? mustn't you scabble? mustn't he scabble? mustn't we scabble? mustn't you scabble? mustn't they scabble?	mustn't I be scabbling? mustn't you be scabbling? mustn't he be scabbling? mustn't we be scabbling? mustn't you be scabbling? mustn't they be scabbling?
Perfect	V-ing perfect
mustn't I have scabbled? mustn't you have scabbled? mustn't he have scabbled? mustn't we have scabbled? mustn't you have scabbled? mustn't they have scabbled?	mustn't I have been scabbling? mustn't you have been scabbling? mustn't he have been scabbling? mustn't we have been scabbling? mustn't you have been scabbling? mustn't they have been scabbling?