must four-wheel
Verbo regular: four-wheel - four-wheeled- four-wheeled

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must four-wheel
you must four-wheel
she must four-wheel
we must four-wheel
you must four-wheel
they must four-wheel 	I must be four-wheeling
you must be four-wheeling
she must be four-wheeling
we must be four-wheeling
you must be four-wheeling
they must be four-wheeling	I must have four-wheeled
you must have four-wheeled
she must have four-wheeled
we must have four-wheeled
you must have four-wheeled
they must have four-wheeled	I must have been four-wheeling
you must have been four-wheeling
she must have been four-wheeling
we must have been four-wheeling
you must have been four-wheeling
they must have been four-wheeling	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't four-wheel
you mustn't four-wheel
she mustn't four-wheel
we mustn't four-wheel
you mustn't four-wheel
they mustn't four-wheel 	I mustn't be four-wheeling
you mustn't be four-wheeling
she mustn't be four-wheeling
we mustn't be four-wheeling
you mustn't be four-wheeling
they mustn't be four-wheeling	I mustn't have four-wheeled
you mustn't have four-wheeled
she mustn't have four-wheeled
we mustn't have four-wheeled
you mustn't have four-wheeled
they mustn't have four-wheeled	I mustn't have been four-wheeling
you mustn't have been four-wheeling
she mustn't have been four-wheeling
we mustn't have been four-wheeling
you mustn't have been four-wheeling
they mustn't have been four-wheeling	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I four-wheel?
must you four-wheel?
must she four-wheel?
must we four-wheel?
must you four-wheel?
must they four-wheel? 	must I be four-wheeling?
must you be four-wheeling?
must she be four-wheeling?
must we be four-wheeling?
must you be four-wheeling?
must they be four-wheeling? 	must I have four-wheeled?
must you have four-wheeled?
must she have four-wheeled?
must we have four-wheeled?
must you have four-wheeled?
must they have four-wheeled? 	must I have been four-wheeling?
must you have been four-wheeling?
must she have been four-wheeling?
must we have been four-wheeling?
must you have been four-wheeling?
must they have been four-wheeling? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I four-wheel?
mustn't you four-wheel?
mustn't she four-wheel?
mustn't we four-wheel?
mustn't you four-wheel?
mustn't they four-wheel? 	mustn't I be four-wheeling?
mustn't you be four-wheeling?
mustn't she be four-wheeling?
mustn't we be four-wheeling?
mustn't you be four-wheeling?
mustn't they be four-wheeling? 	mustn't I have four-wheeled?
mustn't you have four-wheeled?
mustn't she have four-wheeled?
mustn't we have four-wheeled?
mustn't you have four-wheeled?
mustn't they have four-wheeled? 	mustn't I have been four-wheeling?
mustn't you have been four-wheeling?
mustn't she have been four-wheeling?
mustn't we have been four-wheeling?
mustn't you have been four-wheeling?
mustn't they have been four-wheeling?