For native English speakers... should I use "A" or "AN"?
149301
The correct usage in this case would be "an". The way to decide is by the sound of the work you are placing "a" or "an" in front of.  If the sound is vowel like (a,e,i,o, or u) you use "an".  If the sound is consonent like (the rest of the alphabet pretty much), you use "a".  So you would say "an hour" but "a historian"  Hope this helps.
945253
They mean the same thing, although the first one is slightly more passive.  But you could use either one where you use the other.  Note that if someone wanted to be picky-tricky, they would say that the first one has more words and more letters than the second one, that's the only real difference.
1044925
One. It just requires a question mark at the end! It's OK apart from that, although as others have said, there are other ways of saying it..! The tense is fine though!\n\nTwo. The second 'travel to London' is redundant - not necessary. I'd replace it with 'go'!! AND, as you would be travelling to London WITH Helen, I'd say 'we' instead of 'I'!\n"If Helen had invited me to travel to London with her, we would go tomorrow."
1044323
A and W. The letters are the first letters of the words in the question. And Why :)
951642
It's plural.\n\nCoach
1034019
The GENERAL rule is that "an" is used before words in which the first SOUND (not letter) is a vowel sound.  But even in dialects which pronounce the opening "h", it may be considered permissible to use "an" before "historic(al)"   There are good historical and phonological reasons for this.\n\nBASIC explanation why "an" may appear before a word beginning with /h/:\n\n1) the initial /h/ IS not pronounced (so that the first sound spoken is a vowel sound):\n*generally in "hours" hono(u)r"\n*American English - "herb"\n*some dialects "humble", "hotel"\n\n2) history - that is, the /h/ USED to be silent:\nthere are a number of words whose initial /h/ was originally not pronounced, esp. those derived from (Old) French, which did not pronounce it (sometimes did not even spell it)\nSome of these (examples listed in #1) STILL do not pronounce the /h/ in many or all English dialects. Others that have added a pronounced /h/ may still be treated as if they did not have it -- 'historic(al)' is perhaps the best example of this\n\nBUT this is not enough -- those who say "an historic(al) event" (pronouncing the /h/) ALSO usually say "a history"!\nSo, there's one other very important factor, which is:\n\n3) The syllable starting with /h/ LACKS an ACCENT\n--Specifically, if the SECOND syllable is accented, the initial /h/ is WEAKER, perhaps only very slightly pronounced (It seems especially weak if the following vowel is formed in the front of the mouth -- a, i, e (as opposed to vowels made further back -- o, u)\n\nSo, if the first syllable HAS an accent (especially the MAIN accent of the word) it is preceded by "a" --thus we say "A HISTORY" (unless, of course, you're Cockney)\n\nTo get the sense of how this works, just try saying the word "historic" all by itself. You may notice that you scarcely pronounce the /h/. Even if you do, it may feel like it takes extra energy do so (whereas when you say "history" the 'energy' is already supplied by accenting the syllable)\n\n[Some have said 'accented' or 'unaccented', but this is not quite correct. When the SECOND syllable is accented, the first syllable has the LEAST accent; if a LATER syllable has the primary accent the first syllable may still have a SECONDARY accent, and the 'rule' just described does not apply. Examples: 'hospitality' 'hippopotamus']\n\nIn fact, in expressions like "an historic..." many find that the inclusion of the /n/ can actually make the words easier to pronounce (though in that case the /h/ is usually only VERY slightly pronounced).\n\nOther examples where "an" may be found (all of which have an accent on the second syllable): "an hereditary title" [vs. "a HERitage], "an habitual liar" [vs. "a HA-bit"], cf. "an hysterical child"\n\nNow if you were to try some of these expressions in a search engine you would likely find that "an historic" and "an historical" are much more common (in proportion to "a historic" "a historical") than these other examples. That leads to the FINAL(?) factor that affects pronunciation.\n\n4) HABIT! That is, we're USED to hearing it that way, and so it just seems right, even if it does not follow the "rules" we may generally us for such cases.\n\nThus, the reason 'historic' and 'historical' are far more likely to be preceded by "an" than other words that might "qualify" is that they are more COMMON words or expressions. People are used to hearing them this way. This is hardly unusual. In any language the LESS common a word is in everyday speech the MORE likely it is speakers apply the "general rules" to that word. Thus, irregular verbs in a language [forms of to be, come,
639827
You have trouble using articles correctly.  You should study indefinite and definite articles (the, a, that, etc.).  Also, one would say "Would you please evaluate my English on the following links (or it is okay the way you wrote it "on these links")?"  To ask "Can you..." queries the listener to whether they are capable of doing the action requested.  To use the conditional is more appropriate and polite.
6941
a small island. Because the next word starts with a constanant not a vowel. If the next word started with a vowel, you would use "an".
525827
You must say "one does".\n\n"If I were a bird" is a different situation--"were" is the correct subjunctive form of "to be", although many people just use the simple past to express that idea. (If I was a bird)
953123
Well...it actually is debatable, but I'd go with "was" to be on the safe side...\n\nWith either/or (neither/nor) things that contain subjects that take different verb forms, there is no definitive agreement on which form the verb should take.\n\nA majority, however, says that you should follow the subject that is closest to the verb, in this case " I ", so, since:\n\nI WAS asking for refills --> Neither you nor I was asking for refills.\n\nA minority say that the verb should always be singular in these cases, and an even smaller minority say that either verb form is acceptable.\n\nSo your best bet to avoid the ire of an anal-retentive English teacher (or professor, editor, yourself, etc.) is to go with the "closest to the verb" rule, in this case WAS.
896262
Grammatically, they're both correct.\n\nIf you're using this sentence in some kind of composition, your biggest problem is that the sentence has an inconsistent tone. The middle of the sentence has the sophisticated "atypical dialects," while the beginning and end are much more conversational and less descriptive.\n\nBut if you're asking me to pick, I would say the second.
1179985
N and Ñ are two entirely different letters, with entirely different sounds. N sounds as in English, but Ñ sounds like NY in canyon, or NI in onion. Also, "new" (British pron.) sounds like "ñu" to us, Spanish speakers. It's like N and Y spoken together. So it would depend on what you want to say.\n\nADDED LATER:\n\nI'm afraid there is no such rule as the one you're asking for. Of course if you know how to pronounce the word, you'll know which letter to use, and reversely, if you know how to spell it, you'll know how to read it. But if you don't have a clue, and you want to predict from the original English word, which one you will have to use, I'm afraid there is nothing you can do to know which letter is required in each specific case. You know for us, N and Ñ are not just as A and Á (i.e.: a letter with or without accent). We take N and Ñ to be two independent letters, just as M and R, to say any example. So, knowing which one to use of these two has never been an issue. They are two different letters, and each has a place. And you don't wonder, in English, why is it that "month" is spelt with an M rather than with an R. They are two independent letters.
913703
They both start with the letter "A" ??
794114
1. Ask yourself a questions to which this is the answer.\nThe question would be: In which country do people drive on the left? \nThus when you fill the blank in sentence, use "in which". Similarly "where' is also justified, because this sentence answers the question: Where do they drive on the left?.\n\n\n2. Here "is' or "are", is used with "the students", which is plural. Hence "are" is the correct word.
913714
I believe it is a preposition to identify a specific item.  You could have "a" car which could refer to any car, or "the" car which would identify a specific car, generally even more singled out with either a previous sentence or (if dealing in real life as opposed to writing) by pointing out a specific car.
202099
It depends on what the instructor asked you to do. If he wants in MLA form (which is most likely) then you need to use the parenthetical within text. But if he doesn't care (highly unlikely) then go ahead and put it in the end/footnotes, but I highly suggest documenting it in the text like in MLA.
85520
Grammar- it's grammar.\nYou know, with two "a"s.\nAlso, in this case, use "their".\n"There" describes a place.