sich Mühe geben
This reflexive German verb phrase describes the deliberate investment of care and energy in doing something well. The most fitting English equivalent depends on whether the emphasis falls on the intensity of the attempt or on the meticulous attention given.
1. to make an effort
The most common, stylistically neutral equivalent, appropriate in virtually any everyday context.
2. to take pains [formal]
Emphasises careful, detail-oriented effort; a formal expression more at home in written or literary register.
3. to try hard [informal]
A colloquial phrasing that stresses the intensity of the attempt rather than careful attention to detail.
Notes
»Take pains« sounds formal or even literary in contemporary English; everyday speech strongly prefers »make an effort« or »try hard«. Conversely, »sich Mühe geben« is entirely neutral in German, so rendering it as »to endeavor« would come across as stilted.