Heidi
Are these both ok?Books help is to think harder and deeper/more deeply. Thanks
Nov 1, 2018 4:19 PM
Answers · 4
You mean "Books help US..." Yes, both examples are correct. I would certainly say either "deeper" or "more deeply," though I think that from a strictly grammatical standpoint "deeper" should be in the adverb form.
November 1, 2018
Books help us to think harder and more deeply.

You need an adverb for think which harder fulfills but deep needs to be changed to deeply and needs more to add a superlative.

November 1, 2018
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Heidi
Language Skills
Chinese (Mandarin), English
Learning Language
English