Which auxiliary is to be used? Maybe both can be? My research: I have already asked lots of questions like this one, but none of those have been able to make this specific question clear to me.

  1. What we're learning now are gerunds
  2. What we're learning now is gerunds

1 Answer 1


How would you rephrase the clause "what we're learning now"?

The subject is gerunds.

Today's topic is gerunds.

This lesson is about gerunds.

However you reframe it, it refers to one thing. Thus is.

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