现在就干用英语怎么说

"现在就干" 的英文表达可以用 "do it now" 来表示。这个表达的来源可能来自于人们在日常生活中会经常遇到需要立即行动的情况，比如需要立即处理某件事情或者需要立即解决某个问题。例句如下：

"If you have something important to do, do it now." (如果你有重要的事情要做，现在就干)
"I don't want to put this off any longer, let's do it now." (我不想再拖延了，现在就干)
"The sooner we start, the sooner we'll finish. Let's do it now." (我们越快开始，就越快结束。现在就干)