2

I was operated on my left eye a month before.

or,

I was operated on in my left eye a month before.

Are both the sentences grammatical or the second one is wrong?

  • Can you please explain what you're trying to say? Even excluding the specific question you have about the prepositions, these aren't clear sentences. – Catija Apr 9 '18 at 23:10
  • by "operated on" I mean "had surgery".. further I am just willing to know whether the two sentences are grammatical even though they don't make much sense to you.. – user244722 Apr 9 '18 at 23:13
2

Let's look at this simplified active clause:

Somebody operated on me.

In this context, operated on means 'performed surgery on'. To make it passive:

  1. We move somebody into a by-phrase (which can then be deleted).
  2. We promote the object of on to subject position, leaving behind a gap.
  3. We add the passive auxiliary be.

Our sentence ends up looking like this:

I was operated on [__] by somebody.

In this sentence, the object of the preposition on is now a gap, an empty space where its object used to be before it was moved to the beginning of the sentence. I've written the gap with the special symbol [__], although it would not usually be written down. It is not possible to fill this gap; in terms of meaning, it's as though I/me is still there, following on.

Now let's go back to our active example, but this time we'll add in the adjuncts in my left eye and a month before:

Somebody operated on me in my left eye a month before.

This sentence is fine. As you can see, my left eye is not the object of the preposition on. The object of the preposition on is, of course, the pronoun me. Rather, in my left eye is a preposition phrase functioning as a locative adjunct.

Now let's make it passive again:

I was operated on [__] by somebody in my left eye a month before.

This sentence is fine as well. However, without the word in it becomes ungrammatical, because my left eye can't function as a locative adjunct by itself. It needs a preposition to do so.

*I was operated on [__] by somebody my left eye a month before. (ungrammatical)

As you can see, my left eye can't possibly be the object of on. It needs the preposition in to be a grammatical part of this sentence. That's why your first example is ungrammatical.


In this answer:

  • The * symbol marks a sentence as ungrammatical.
  • The [__] symbol marks a gap left behind by movement during passivization.
0

First, operated on usually stands by itself.

I was operated on (in the hospital).

where operated on refers to the person (I), not the body part. Other information like location can be added.

When referring to the body part, you can say:

The operation was on my eye (foot, knee, etc.).
I had surgery on my eye (foot, knee, etc.).

in wouldn't be used unless referring to some activity inside a body part.

-1

The first sentence is definitely wrong, as concatenating the two phrases "I was operated on / my left eye" doesn't scan correctly.

The second one is better, as the preposition forms a transition between the phrases, but it's still longer than necessary to convey the intended meaning.

Here's a better rephrasing of the whole sentence:

My left eye was operated on a month ago.

Alternatively:

I was operated on a month ago, in my left eye.

  • I'm sorry but the two are identical except for the use of "in" in the second. How is the second one better? – Catija Apr 9 '18 at 23:17
  • We're looking mainly for answers that explain why one sentence is better than the other, so people can learn from it and apply that knowledge to other sentences in the future. – snailcar Apr 9 '18 at 23:19
  • "I was operated on" is a complete clause, and requires something to join it to the clarifying phrase "my left eye". A preposition works sufficiently well. But it's better to avoid the duplication of "I" with "my" in the first place, hence my rephrasing. – Chromatix Apr 9 '18 at 23:19
  • I've edited the answer to improve it. – Chromatix Apr 9 '18 at 23:25

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