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Seifi Posted 14 years ago
Grammar

OR structure failure

Why parallel structure for "OR" didn`t use here:
Operant conditioning involves rewarding or punishing certain behavior to reinforce OR extinguish its occurrence.
  

Top answer

But it is parallel; in fact, there are two sets of parellelisms: Operant conditioning involves (1) rewarding or punishing certain behavior to (2) reinforce or extinguish its occurrence. What confuses you?

— Mister Micawber

  • But it is parallel; in fact, there are two sets of parellelisms: Operant conditioning involves (1) rewarding or punishing certain behavior to (2) reinforce or extinguish its occurrence.
  • What confuses you?
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7 Answers
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But it is parallel; in fact, there are two sets of parellelisms:

Operant conditioning involves (1) rewarding or punishing certain behavior to (2) reinforce or extinguish its occurrence.

What confuses you?
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In the second: TO reinforce OR (TO) extinguish
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The verb forms remain parallel; the second infinitive particle is merely ellipted.
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It`s OK but in the second i think we should have another "to" :

to reinforce or TO extinguish

Both "reinforce" and "extinguish" are verb then must have the same structure.
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please disregard my previous post.

OK, but i on the test how can recognize this?

By grammar rules both of them should have same structure.
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Operant conditioning involves ( 1 ) rewarding or punishing certain behavior to ( 2 ) reinforce or extinguish its occurrence.

If you mean that ( 1 ) and ( 2 ) above should have the same structure, that is not true, since they are not in parallel positions; they are at different levels in the sentence. 2 is subordinate to 1.
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Operant conditioning involves rewarding or punishing certain behave to reinforce or extinguish its occurrence.
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