An exchange student just asked me this, and I have no idea despite being a native speaker. Does anyone know which is correct, and why? Or are both technically correct?

I will already have studied that.

I will have already studied that.

My gut feeling is that the second is incorrect because it is a split infinitive, but is that even an infinitive?

  • 2
    It's not a split infinitive. They're both fine; see this Google Ngram. – Peter Shor Oct 19 '13 at 22:15
  • 1
    The infinitive in the sentence is have, but -- like all infinitives after modal auxiliaries like will -- it does not use to, and therefore is impossible to split, even with an electric infinitive splitter. – John Lawler Oct 19 '13 at 22:32
  • @JohnLawler what about with the Large Hadron Collider? They can split atoms now. – McGarnagle Oct 19 '13 at 22:40
  • Yes, but who wants to carry around a large hadron? – John Lawler Oct 19 '13 at 23:02
  • Let alone find somebody with another one to collide with. – Andrew Leach Oct 21 '13 at 17:49

*I will have studied that already *

is more correct. I remember vaguely the rule, but the verbs should be adjacent to one another:

will + have + studied.

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