must business
Verbo regular: business - businessed- businessed

, este verbo pode não existir, a conjugação é dada como exemplo.

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must business
you must business
she must business
we must business
you must business
they must business 	I must be businessing
you must be businessing
she must be businessing
we must be businessing
you must be businessing
they must be businessing	I must have businessed
you must have businessed
she must have businessed
we must have businessed
you must have businessed
they must have businessed	I must have been businessing
you must have been businessing
she must have been businessing
we must have been businessing
you must have been businessing
they must have been businessing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mustn't business
you mustn't business
she mustn't business
we mustn't business
you mustn't business
they mustn't business 	I mustn't be businessing
you mustn't be businessing
she mustn't be businessing
we mustn't be businessing
you mustn't be businessing
they mustn't be businessing	I mustn't have businessed
you mustn't have businessed
she mustn't have businessed
we mustn't have businessed
you mustn't have businessed
they mustn't have businessed	I mustn't have been businessing
you mustn't have been businessing
she mustn't have been businessing
we mustn't have been businessing
you mustn't have been businessing
they mustn't have been businessing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I business?
must you business?
must she business?
must we business?
must you business?
must they business? 	must I be businessing?
must you be businessing?
must she be businessing?
must we be businessing?
must you be businessing?
must they be businessing? 	must I have businessed?
must you have businessed?
must she have businessed?
must we have businessed?
must you have businessed?
must they have businessed? 	must I have been businessing?
must you have been businessing?
must she have been businessing?
must we have been businessing?
must you have been businessing?
must they have been businessing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mustn't I business?
mustn't you business?
mustn't she business?
mustn't we business?
mustn't you business?
mustn't they business? 	mustn't I be businessing?
mustn't you be businessing?
mustn't she be businessing?
mustn't we be businessing?
mustn't you be businessing?
mustn't they be businessing? 	mustn't I have businessed?
mustn't you have businessed?
mustn't she have businessed?
mustn't we have businessed?
mustn't you have businessed?
mustn't they have businessed? 	mustn't I have been businessing?
mustn't you have been businessing?
mustn't she have been businessing?
mustn't we have been businessing?
mustn't you have been businessing?
mustn't they have been businessing?