must decrease
Regelmä&szlig;iges Verb: decrease - decreased- decreased

Bestätigung 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I must decrease
you must decrease
she must decrease
we must decrease
you must decrease
they must decrease 	I must be decreasing
you must be decreasing
she must be decreasing
we must be decreasing
you must be decreasing
they must be decreasing	I must have decreased
you must have decreased
she must have decreased
we must have decreased
you must have decreased
they must have decreased	I must have been decreasing
you must have been decreasing
she must have been decreasing
we must have been decreasing
you must have been decreasing
they must have been decreasing	

Negation 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I must not decrease
you must not decrease
she must not decrease
we must not decrease
you must not decrease
they must not decrease 	I must not be decreasing
you must not be decreasing
she must not be decreasing
we must not be decreasing
you must not be decreasing
they must not be decreasing	I must not have decreased
you must not have decreased
she must not have decreased
we must not have decreased
you must not have decreased
they must not have decreased	I must not have been decreasing
you must not have been decreasing
she must not have been decreasing
we must not have been decreasing
you must not have been decreasing
they must not have been decreasing	

Fragende Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
must I decrease?
must you decrease?
must she decrease?
must we decrease?
must you decrease?
must they decrease? 	must I be decreasing?
must you be decreasing?
must she be decreasing?
must we be decreasing?
must you be decreasing?
must they be decreasing? 	must I have decreased?
must you have decreased?
must she have decreased?
must we have decreased?
must you have decreased?
must they have decreased? 	must I have been decreasing?
must you have been decreasing?
must she have been decreasing?
must we have been decreasing?
must you have been decreasing?
must they have been decreasing? 	

Fragende Negation Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
must I not decrease?
must you not decrease?
must she not decrease?
must we not decrease?
must you not decrease?
must they not decrease? 	must I not be decreasing?
must you not be decreasing?
must she not be decreasing?
must we not be decreasing?
must you not be decreasing?
must they not be decreasing? 	must I not have decreased?
must you not have decreased?
must she not have decreased?
must we not have decreased?
must you not have decreased?
must they not have decreased? 	must I not have been decreasing?
must you not have been decreasing?
must she not have been decreasing?
must we not have been decreasing?
must you not have been decreasing?
must they not have been decreasing?