Examples:

• Leave it to me. I know the ropes.
• He don't know the ropes yet, but he's very promising material.
• You seem to know the ropes very well.
• You seem to know the ropes very well.
• Looking on the bright side, at least I know the ropes.
• You've got to know the ropes, Culum.
• I know the ropes now, know what the tricks are.
• If you don't know the ropes here... you won't earn much.
• She doesn't know the ropes. She won't listen.
• I mean, I know the ropes, so...