AS sure as night follas day

exp.

Heard in Donegal

When there is going to be a sure out come of something.

In use

Patrick: "Johnny slipped on da wet flur n' da shop 'n broke hes leg" Francie: "A sure as night follas day he'll be in for da claim now"

Posh English

Johnny slipped on the damp flooring in the establishment and fractured his leg.