müsstest du

you should; you would have to

→ müssen

phrase Rare #44,947

you should; you would have to The second-person singular subjunctive form of müssen. It can express a softened expectation or obligation, and in questions often means “shouldn't you...?”

GE: Müsstest du nicht langsam losgehen?

EN: Shouldn't you be leaving soon?

Müsstest du damit nicht besser umgehen können?

Shouldn't you be able to handle that better?

— The Big Sick (2017)

Das müsstest du doch selbst wissen.

You should know that yourself.

— Die Taschendiebin (2016)

Dabei müsstest du doch genau wissen, dass ich nicht mehr habe, was du suchst.

But you should know perfectly well that I no longer have what you're looking for.

— Harry Potter und die Heiligtümer des Todes - Teil 1 (2010)

Damit müsstest du rechnen.

You should have expected that.