do level best

do your level best

to try very hard to do something (often + to do sth) Tickets are quite hard to come by but I'll do my level best to get you one.

Name	Pronounced	Usage
Harley	HAHR-lee	English
Panteleimon	-	Late Greek
Khamisi	-	Eastern African, Swahili
Tiger	TIE-gər	English (Rare)
Gerasim	-	Russian, Macedonian
Blondie	BLAHN-dee	English (Rare)