German phrase
Du hast dir echt Mühe gegeben!
Meaning
You really made an effort!
When to use it
This praises someone's effort. It can also encourage them to keep trying.
Example dialogue
Mein Papierflieger fliegt nicht weit.
My paper airplane doesn't fly very far.
Versuch es noch einmal. Du hast dir echt Mühe gegeben!
Try it one more time. You really made an effort!