I or me

Be careful to use the pronouns I and me, he and him, she and her, we and us and they and them in the right place.

Use I, we, etc. when you are talking about someone who has done something (i.e. who is the subject of the sentence).

Use me, us, etc. when you are talking about someone who has had something done to them (i.e. who is the object of the sentence).

People most often make mistakes over this when they are talking about more than one person:

Me and Annie had a dog once.

Adrian and me were going out.

Both these sentences are wrong.

In these sentences you should use I, not me. Because the two people are the subject in both.

Annie and I had a dog once.

Watch Helen and I while we show you.

The above sentence is a wrong one. You need me here as the object of watch.

Watch Helen and me while we show you.

The above sentence is the right one.

Everything depends on you and I.

The above sentence is a wrong one. Use me, us, etc. after prepositions.

Everything depends on you and me.

The above sentence is the right one.

A good guide in cases like these is to see whether the sentence sounds right with only the pronoun.

If Me had a dog is wrong, then so is Annie and me had a dog.

If you wouldn't say Watch I while I show you, you shouldn't say Watch Helen and I.

It's right to say between you and me and wrong to say between you and I. This is because a preposition such as between should be followed by an object pronoun such as me, him, her and us rather than a subject pronoun such as I, he, she and we.

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"Nay! man is evidence against himself. Though he puts forth his excuses." Holy Qur'an (75:14-15)