I'm just practicing passage reconstruction. Here I've formed a phrase "Organic former usually use natural pesticides and fertilizers instead using chemical pesticide which may causes economic damage to agricultural productivity." for respective phrase from a passage "Organic farmers use natural pesticides and fertilizers.". I've used "which may causes" to form the phrase. Is this correct?

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    There are too many errors in the sentence you wrote to be addressed in a single question. The correct form of the phrase in bold is "which may cause." The modal verb may takes the infinitive here. Can you tell us whether you know what a modal verb is in English? Jun 19, 2017 at 5:07

1 Answer 1


You may be confusing

which causes economic damage to agricultural productivity.


may cause economic damage to agricultural productivity.

which as @P.E.Dant points out uses a modal verb.

  • Thank you. Now i understand... I appreciate your help.. Thanks @P.E.Dant
    – user6161
    Jun 19, 2017 at 8:30

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