Right. What you have stated is generally correct. If we remove the parenthetical component, the remaining sentence should be grammatical. Strunk says the same thing.prepgmat09 wrote: Although you have quoted William Strunk, making me think twice before making a comment, I think the sentence mentioned above is gramatically incorrect. This is because the sentence should be meaningful even when the modifiers are removed. In the above sentence, if we remove the modifier (enclosed in commas), the sentence reads:
He saw us coming greeted us with a smile.
This sentence without modifiers does not make much logical or grammatical sense.
E.g. -
1) The audience, which had at first been indifferent, became more and more interested. - Correct
2) In 1769, when Napoleon was born, Corsica had but recently been acquired by France. - Correct
However, Strunk makes this one exception if the parenthetical part follows a conjunction, in which case the conjunction is taken within the parenthesis.
Take the following example (mine) -
3) I have a dream and, if God is willing, I shall realize it. - Incorrect
4) I have a dream, and if God is willing, I shall realize it. - Correct
Let me elucidate why this exception makes sense to me. Punctuations are used in writing to signify moments of silence or to mark breaks / pauses in speech.
Try to speak sentences 3 and 4 aloud and try to figure out when should we pause.
In sentence 3, comma comes after and. So we must speak in the following manner -
I have a dream and,
pause for a while,
if God is willing,
pause again
I shall realize it.
In sentence 4, comma comes before and. We must speak in the following manner -
I have a dream,
pause for a while,
and if God is willing,
pause again
I shall realize it.
Now, 4 sounds much more fluent and consistent to me than 3. That is why putting comma before and not after and makes sense.
However, I think you shouldn't rack your brain too much on it. I doubt GMAC would ask such a question.
@uwhusky,
What is the source?












