English verb conjugation
MUST PONY

Regular verb: pony - ponied - ponied

Affirmation

Simple form	V-ing form
I must pony you must pony he must pony we must pony you must pony they must pony	I must be ponying you must be ponying he must be ponying we must be ponying you must be ponying they must be ponying
Perfect	V-ing perfect
I must have ponied you must have ponied he must have ponied we must have ponied you must have ponied they must have ponied	I must have been ponying you must have been ponying he must have been ponying we must have been ponying you must have been ponying they must have been ponying

Negation

Simple form	V-ing form
I mustn't pony you mustn't pony he mustn't pony we mustn't pony you mustn't pony they mustn't pony	I mustn't be ponying you mustn't be ponying he mustn't be ponying we mustn't be ponying you mustn't be ponying they mustn't be ponying
Perfect	V-ing perfect
I mustn't have ponied you mustn't have ponied he mustn't have ponied we mustn't have ponied you mustn't have ponied they mustn't have ponied	I mustn't have been ponying you mustn't have been ponying he mustn't have been ponying we mustn't have been ponying you mustn't have been ponying they mustn't have been ponying

Interrogative form

Simple form	V-ing form
must I pony? must you pony? must he pony? must we pony? must you pony? must they pony?	must I be ponying? must you be ponying? must he be ponying? must we be ponying? must you be ponying? must they be ponying?
Perfect	V-ing perfect
must I have ponied? must you have ponied? must he have ponied? must we have ponied? must you have ponied? must they have ponied?	must I have been ponying? must you have been ponying? must he have been ponying? must we have been ponying? must you have been ponying? must they have been ponying?

Interro-negative form

Simple form	V-ing form
mustn't I pony? mustn't you pony? mustn't he pony? mustn't we pony? mustn't you pony? mustn't they pony?	mustn't I be ponying? mustn't you be ponying? mustn't he be ponying? mustn't we be ponying? mustn't you be ponying? mustn't they be ponying?
Perfect	V-ing perfect
mustn't I have ponied? mustn't you have ponied? mustn't he have ponied? mustn't we have ponied? mustn't you have ponied? mustn't they have ponied?	mustn't I have been ponying? mustn't you have been ponying? mustn't he have been ponying? mustn't we have been ponying? mustn't you have been ponying? mustn't they have been ponying?