帮忙

bang1 mang2

to help; to lend a hand; to do a favor; to do a good turn

赶忙

gan3 mang2

to hurry; to hasten; to make haste

着忙

zhao2 mang2

to rush; in a hurry; to worry about being late

奔忙

ben1 mang2

to be busy rushing about; to bustle about

不忙

bu4 mang2

there's no hurry; take one's time