Already

Also comes before the main verb or between an auxiliary or modal verb and the main verb.

•Have you already listened to Miley Cyrus’s song? Oh, yes It’s awesome.•Pantuflio, Have you already done your homework? No, mum. •I was thinking of going out this Sunday. Oh, that’s a good idea Have you already seen “Where’s the Millers”?

We use it to say that something happened sooner than expected.

Yet

We usually comes at the end of the sentence.

• I'm really hungry. I haven't eaten yet. • Have you finished your homework yet? • For me Twilight the saga hasn’t finished yet.

We used it in questions or negative statements to talk about things that we

expected to happen before now.

Since

• I’ve been learning english since 2008.• Paramore have been playing since 2004• I’ve been living in Lima since I was born.• Romina have been playing football since she was 6 years.

Used when is about a specifying point of time.