Grammar errors are such a bitch - especially if you're the sort who appreciates grammar, vocabulary and, well, words.

A study conducted last year by the Society for Human Resources and Management showed that 45% of employers intend to increase training for grammar and other language skills.

In a professional environment, what you say and how you say/spell it makes a huge difference. Here's a list of common mistake people make in speech and writing:

1. "Fewer" vs. "Less"

Use "fewer" when discussing objects you can count. For example, "He ate five fewer cookies than the other guy," or "fewer than 20 people attended the meeting."

Use "less" for intangible concepts, like time. For example, "I spent less than two hours finishing this report."

2. "It's vs. "Its"

An apostrophe normally symbolizes possession. As in, "I took the cat's collar." But because apostrophes also usually replace omitted letters — like "don't" — the "it's" vs. "its" decision gets complicated.

Use "its" as the possessive pronoun: "I took its collar." For the shortened version of "it is" use the version with the apostrophe. As in, "it's raining.

3. Dangling Modifiers

These are ambiguous, adjectival clauses at the beginning or end of sentences that often don't modify the right word or phrase.

For example, if you say, "Rotting in the refrigerator, our office manager threw the fruit in the garbage." The structure of that sentence implies your office manager is a zombie trapped in a chilly kitchen appliance.

Make sure to place the modifying clause right next to the word or phrase it intends to describe. The correct version reads, "Our office manager threw the fruit, rotting in the refrigerator, in the garbage."

4. "Who" vs. "Whom"

Earlier this year, "The New Republic" published a review of Mark Leibovich's "This Town." Regardless of his opinions, the author deserves praise. The title read, "Careful Whom You Call A Hypocrite, Washington." Yes, Alec MacGillis. Just yes.

When considering whether to use "who" or "whom," you have to rearrange the sentence in your own head. In the aforementioned case, "whom you call a hypocrite" changes to "you call whom a hypocrite." "Whom" suits the sentence instead of "who" because the word functions as the object of the sentence, not the subject.

It's not always easy to tell subjects from objects but to use an over-simplified yet good, general rule: subjects start sentences (or clauses), and objects end them.

For reference, "who is a hypocrite?" would be a perfectly grammatically correct question to ask.

5. Me, Myself, And I

Deciding when to use me, myself, or I also falls under the subject/object discussion. "Me" always functions as the object (except in that case); "I" is always the subject. And you only use "myself" when you've referred to yourself earlier in the sentence. It's called a reflexive pronoun — it corresponds to a pronoun previously in the sentence. For example, "I made myself breakfast" not "my friend and myself made lunch."

To decide usage in "someone else and me/I" situations, take the other person out of the sentence. "My co-worker and I went to lunch." Is "I went to lunch" correct? You're good then.

6. "Lie" vs. "Lay"

Dear everyone, stop saying: "I'm going to go lay down." The word "lay" must have an object. Someone lays something somewhere. You lie. Unless you lay, which means lie but in the past tense. Just look at the chart:


7. Irregular Verbs

The English language has quite a few surprises. We can't list all the irregular verbs, but be aware they do exist. For example, no past tense exists for the word "broadcast." "Broadcasted" isn't a word. You'd say, "Yesterday, CNN broadcast a show." "Sneak" and "hang" also fall into this category. Look into it.

8. "Nor" vs. "Or"

Use "nor" before the second or farther of two alternatives when "neither" introduces the first. Think of it as "or" for negative sentences, and it's not optional. For example, "Neither my boss nor I understand the new program." You can also use nor with a negative first clause or sentence including "not." For example, "My boss didn't understand the program, nor did I."

9. "Then" vs. "Than"

There's a simple distinction between these two words. Use "then" when discussing time. As in, "We had a meeting, and then we went to lunch." Include "than" in comparisons. "This meeting was more productive than the last one."

10. Ending Sentences With Prepositions

First of all, don't do it — usually. Second, for those who don't know, prepositions are any words that a squirrel can "run" with a tree (i.e. The squirrel ran around, by, through, up, down, around, etc. the tree).

"My boss explained company policy, which we had to abide by" sounds awful. In most cases, you can just transpose the preposition to the beginning of the clause. "My boss explained company policy, by which we had to abide," or better yet, rephrase the sentence to avoid this problem: "My boss explained the mandatory company policy."

11. Subject (And Possessive Pronoun) And Verb Agreement

This rule seems a bit counterintuitive, but most plural subjects take verbs without an "s." For example, "she types," but "they type." The pronoun agreement comes into play when when you add a possessive element to these sentences. "She types on her computer," and "they type on their computers."

As a caveat, the pronoun "someone" requires "her or his" as the possessive.