Can I use "past tense" and "future tense" in one sentence?

Although Jason went to the America last week for vacation, he will work on time tomorrow.

Thanks so much!

1 Answer 1


Yes, absolutely. If you are talking about things that happened at two different times, you certainly can use different tenses to refer to them.

Side note: "America" is a proper noun, and so you shouldn't use an article. For the second part, you probably mean that he will arrive on time. And "vocation" means your job or life's mission; I think you meant he went on "vacation". So the sentence should be, "Although Jason went to America last week for vacation, he will arrive at work on time tomorrow." (Assuming I'm understanding your intent.)

  • 1
    It's true that you shouldn't use "the" with "America" in this sentence, but not just because it is a proper noun. See cambridge.org/grammarandbeyond/newsletter/2011/11/….
    – chepner
    Sep 28, 2016 at 18:26
  • Thanks for your help! In this way, can I say“ He prepared some food before he leave tonight” Thanks a lot!
    – moyeea
    Sep 28, 2016 at 18:57
  • @moyeea - No, "He prepared some food before he leave tonight" doesn't make sense for a number of reasons. Firstly, "he leave" doesn't ever make sense: it's "he leaves" or "he will leave". But it also doesn't make sense because you can't combine tenses like that without a conjunction like the although you used in your first example. "He prepared some food although he will leave tonight" works.
    – stangdon
    Sep 28, 2016 at 21:31
  • @stangdon Thanks for your help! But normally we can't put "will" in " before-clause" right? About the conjunction, "before is not a conjunction"? We can say:I will finish everything before you leave. right?
    – moyeea
    Sep 29, 2016 at 0:09
  • @moyeea - OK, before is kind of a conjunction sometimes. And I can imagine using before with will in a sentence like "If we don't leave now, Fred will get there before we will." And yes, "I will finish everything before you leave" is correct. But "He prepared food before he will leave" doesn't make sense because "he prepared" is in the past, and "he will leave" is a prediction about the future - it only makes sense to say he prepared food before something else in the past.
    – stangdon
    Sep 29, 2016 at 1:11

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .