Nine times out of ten

We use this expression to say that something is extremely probable.

You can use this phrase in ………… language.

 Spoken
 Written
 Informal

Example 1
A: What do you do on Friday nights?
B: Well, nine times out of ten we go to our favorite bar.

Example 2
A: I always try something different at weekends.
B: Me too. My brother doesn’t – nine times out of ten he goes to his weekend house!