English verb conjugation
MUST CRANE

Regular verb: crane - craned - craned

Affirmation

Simple form	V-ing form
I must crane you must crane he must crane we must crane you must crane they must crane	I must be craning you must be craning he must be craning we must be craning you must be craning they must be craning
Perfect	V-ing perfect
I must have craned you must have craned he must have craned we must have craned you must have craned they must have craned	I must have been craning you must have been craning he must have been craning we must have been craning you must have been craning they must have been craning

Negation

Simple form	V-ing form
I mustn't crane you mustn't crane he mustn't crane we mustn't crane you mustn't crane they mustn't crane	I mustn't be craning you mustn't be craning he mustn't be craning we mustn't be craning you mustn't be craning they mustn't be craning
Perfect	V-ing perfect
I mustn't have craned you mustn't have craned he mustn't have craned we mustn't have craned you mustn't have craned they mustn't have craned	I mustn't have been craning you mustn't have been craning he mustn't have been craning we mustn't have been craning you mustn't have been craning they mustn't have been craning

Interrogative form

Simple form	V-ing form
must I crane? must you crane? must he crane? must we crane? must you crane? must they crane?	must I be craning? must you be craning? must he be craning? must we be craning? must you be craning? must they be craning?
Perfect	V-ing perfect
must I have craned? must you have craned? must he have craned? must we have craned? must you have craned? must they have craned?	must I have been craning? must you have been craning? must he have been craning? must we have been craning? must you have been craning? must they have been craning?

Interro-negative form

Simple form	V-ing form
mustn't I crane? mustn't you crane? mustn't he crane? mustn't we crane? mustn't you crane? mustn't they crane?	mustn't I be craning? mustn't you be craning? mustn't he be craning? mustn't we be craning? mustn't you be craning? mustn't they be craning?
Perfect	V-ing perfect
mustn't I have craned? mustn't you have craned? mustn't he have craned? mustn't we have craned? mustn't you have craned? mustn't they have craned?	mustn't I have been craning? mustn't you have been craning? mustn't he have been craning? mustn't we have been craning? mustn't you have been craning? mustn't they have been craning?