0
Anonymous Posted 11 years ago
Grammar

modal + to infinitive

Factories must to refine oil befor it can be used as fuel.

This sentence has been extracted from a book, Essential words for toefl.

May you please explain why there is "To" after The modal "must" and how does it function in the sentence?
  

Top answer

It is most probably a mistake in the book. Probably it should read "must refine". In a special context, a verb mentioned earlier may be implied verb after "must", and "to" may mean "in order to", but in this particular case it seems unlikely.

  • It is most probably a mistake in the book.
  • Probably it should read "must refine".
  • In a special context, a verb mentioned earlier may be implied verb after "must", and "to" may mean "in order to", but in this particular case it seems unlikely.
Free · every Monday

Get the Weekly English Kit 📬

New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.

1 Answers
0
It is most probably a mistake in the book. Probably it should read "must refine".

In a special context, a verb mentioned earlier may be implied verb after "must", and "to" may mean "in order to", but in this particular case it seems unlikely.

Related Questions