do a favour
美
英 
例句
I want to know whether he leads happily or not, asking you to do a favour to let me make the contact with him good?
我想知道他是否过得愉快,请你帮个忙让我与他取得联系好吗?
It's quite common, if someone agrees to do a favour, to use the future tense to promise a reward. So for example, you might say.
如果某人答应帮你什么忙,我们用将来时许诺一定的谢礼,这是很常见的。例如,你会说。
need you to do a favour for me . - of course
能帮我个忙吗-当然