“No pain, no gain”

“Through thick and thin”

In good and bad times.

“Speak your mind”

To say what you really think.

“Once in a blue moon”

Very rarely.

“Leave no stone unturned”

To try every possible way to achieve something.

“Piece of cake”

Something very easy to do.

“Beat a dead horse”

To waste time on something already decided.

“Cost a fortune”

To be very expensive.

“Let sleeping dogs lie”

Don’t bring up old problems.