know what are doing



know what you are doing

to have the necessary knowledge or experience to do something Mountain climbing is a dangerous sport, so I hope he knows what he's doing.
See also: know

Common Names:

NameGenderPronouncedUsage
Konul-Azerbaijani
Antimanan-tee-MAWNNative American, Mapuche
SeÒRasSHO-rahsScottish
Aysu-Turkish
QuinceyKWINT-seeEnglish (Rare)
Jaime (1)HIE-me (Spanish), ZHIEM (Portuguese)Spanish, Portuguese