English verb conjugation
MUST SCAMPER

Regular verb: scamper - scampered - scampered

Affirmation

Simple form	V-ing form
I must scamper you must scamper he must scamper we must scamper you must scamper they must scamper	I must be scampering you must be scampering he must be scampering we must be scampering you must be scampering they must be scampering
Perfect	V-ing perfect
I must have scampered you must have scampered he must have scampered we must have scampered you must have scampered they must have scampered	I must have been scampering you must have been scampering he must have been scampering we must have been scampering you must have been scampering they must have been scampering

Negation

Simple form	V-ing form
I mustn't scamper you mustn't scamper he mustn't scamper we mustn't scamper you mustn't scamper they mustn't scamper	I mustn't be scampering you mustn't be scampering he mustn't be scampering we mustn't be scampering you mustn't be scampering they mustn't be scampering
Perfect	V-ing perfect
I mustn't have scampered you mustn't have scampered he mustn't have scampered we mustn't have scampered you mustn't have scampered they mustn't have scampered	I mustn't have been scampering you mustn't have been scampering he mustn't have been scampering we mustn't have been scampering you mustn't have been scampering they mustn't have been scampering

Interrogative form

Simple form	V-ing form
must I scamper? must you scamper? must he scamper? must we scamper? must you scamper? must they scamper?	must I be scampering? must you be scampering? must he be scampering? must we be scampering? must you be scampering? must they be scampering?
Perfect	V-ing perfect
must I have scampered? must you have scampered? must he have scampered? must we have scampered? must you have scampered? must they have scampered?	must I have been scampering? must you have been scampering? must he have been scampering? must we have been scampering? must you have been scampering? must they have been scampering?

Interro-negative form

Simple form	V-ing form
mustn't I scamper? mustn't you scamper? mustn't he scamper? mustn't we scamper? mustn't you scamper? mustn't they scamper?	mustn't I be scampering? mustn't you be scampering? mustn't he be scampering? mustn't we be scampering? mustn't you be scampering? mustn't they be scampering?
Perfect	V-ing perfect
mustn't I have scampered? mustn't you have scampered? mustn't he have scampered? mustn't we have scampered? mustn't you have scampered? mustn't they have scampered?	mustn't I have been scampering? mustn't you have been scampering? mustn't he have been scampering? mustn't we have been scampering? mustn't you have been scampering? mustn't they have been scampering?