English verb conjugation
MUST SLEIGH

Regular verb: sleigh - sleighed - sleighed

Affirmation

Simple form	V-ing form
I must sleigh you must sleigh he must sleigh we must sleigh you must sleigh they must sleigh	I must be sleighing you must be sleighing he must be sleighing we must be sleighing you must be sleighing they must be sleighing
Perfect	V-ing perfect
I must have sleighed you must have sleighed he must have sleighed we must have sleighed you must have sleighed they must have sleighed	I must have been sleighing you must have been sleighing he must have been sleighing we must have been sleighing you must have been sleighing they must have been sleighing

Negation

Simple form	V-ing form
I mustn't sleigh you mustn't sleigh he mustn't sleigh we mustn't sleigh you mustn't sleigh they mustn't sleigh	I mustn't be sleighing you mustn't be sleighing he mustn't be sleighing we mustn't be sleighing you mustn't be sleighing they mustn't be sleighing
Perfect	V-ing perfect
I mustn't have sleighed you mustn't have sleighed he mustn't have sleighed we mustn't have sleighed you mustn't have sleighed they mustn't have sleighed	I mustn't have been sleighing you mustn't have been sleighing he mustn't have been sleighing we mustn't have been sleighing you mustn't have been sleighing they mustn't have been sleighing

Interrogative form

Simple form	V-ing form
must I sleigh? must you sleigh? must he sleigh? must we sleigh? must you sleigh? must they sleigh?	must I be sleighing? must you be sleighing? must he be sleighing? must we be sleighing? must you be sleighing? must they be sleighing?
Perfect	V-ing perfect
must I have sleighed? must you have sleighed? must he have sleighed? must we have sleighed? must you have sleighed? must they have sleighed?	must I have been sleighing? must you have been sleighing? must he have been sleighing? must we have been sleighing? must you have been sleighing? must they have been sleighing?

Interro-negative form

Simple form	V-ing form
mustn't I sleigh? mustn't you sleigh? mustn't he sleigh? mustn't we sleigh? mustn't you sleigh? mustn't they sleigh?	mustn't I be sleighing? mustn't you be sleighing? mustn't he be sleighing? mustn't we be sleighing? mustn't you be sleighing? mustn't they be sleighing?
Perfect	V-ing perfect
mustn't I have sleighed? mustn't you have sleighed? mustn't he have sleighed? mustn't we have sleighed? mustn't you have sleighed? mustn't they have sleighed?	mustn't I have been sleighing? mustn't you have been sleighing? mustn't he have been sleighing? mustn't we have been sleighing? mustn't you have been sleighing? mustn't they have been sleighing?