English verb conjugation
MUST LEAP

Irregular verb: leap - leapt, leaped - leapt, leaped

Affirmation

Simple form	V-ing form
I must leap you must leap he must leap we must leap you must leap they must leap	I must be leaping you must be leaping he must be leaping we must be leaping you must be leaping they must be leaping
Perfect	V-ing perfect
I must have leapt, leaped you must have leapt, leaped he must have leapt, leaped we must have leapt, leaped you must have leapt, leaped they must have leapt, leaped	I must have been leaping you must have been leaping he must have been leaping we must have been leaping you must have been leaping they must have been leaping

Negation

Simple form	V-ing form
I mustn't leap you mustn't leap he mustn't leap we mustn't leap you mustn't leap they mustn't leap	I mustn't be leaping you mustn't be leaping he mustn't be leaping we mustn't be leaping you mustn't be leaping they mustn't be leaping
Perfect	V-ing perfect
I mustn't have leapt, leaped you mustn't have leapt, leaped he mustn't have leapt, leaped we mustn't have leapt, leaped you mustn't have leapt, leaped they mustn't have leapt, leaped	I mustn't have been leaping you mustn't have been leaping he mustn't have been leaping we mustn't have been leaping you mustn't have been leaping they mustn't have been leaping

Interrogative form

Simple form	V-ing form
must I leap? must you leap? must he leap? must we leap? must you leap? must they leap?	must I be leaping? must you be leaping? must he be leaping? must we be leaping? must you be leaping? must they be leaping?
Perfect	V-ing perfect
must I have leapt, leaped? must you have leapt, leaped? must he have leapt, leaped? must we have leapt, leaped? must you have leapt, leaped? must they have leapt, leaped?	must I have been leaping? must you have been leaping? must he have been leaping? must we have been leaping? must you have been leaping? must they have been leaping?

Interro-negative form

Simple form	V-ing form
mustn't I leap? mustn't you leap? mustn't he leap? mustn't we leap? mustn't you leap? mustn't they leap?	mustn't I be leaping? mustn't you be leaping? mustn't he be leaping? mustn't we be leaping? mustn't you be leaping? mustn't they be leaping?
Perfect	V-ing perfect
mustn't I have leapt, leaped? mustn't you have leapt, leaped? mustn't he have leapt, leaped? mustn't we have leapt, leaped? mustn't you have leapt, leaped? mustn't they have leapt, leaped?	mustn't I have been leaping? mustn't you have been leaping? mustn't he have been leaping? mustn't we have been leaping? mustn't you have been leaping? mustn't they have been leaping?