私（わたし）がいる。

トムがいます。

メアリーさんがいるんです。

二人（ふたり）がいます。

いい人（ひと）がいます。

田中（たなか）さんとトムがいます。

先生（せんせい）がいます。

私（わたし）と友達（ともだち）がいます。

あなたがいるでしょう。

犬（いぬ）がいます。

留学生（りゅうがくせい）がいる。

外国人（がいこくじん）がいます。

Compare 「がある」and「がいる」

ある & いる + particles (There is / I have)

<div class='writeup-body'>がいる is a common construction that is simply a combination of the が particle, and the verb いる. This expression means 'to exist', or 'there is', and is used in relation to living/animate things.<ul class='writeup-examples--holder'><li class='writeup-example'><div class='writeup-example--japanese'>警察（けいさつ）がいる。</div><div class='writeup-example--english'>There is a police officer.</div></li><li class='writeup-example'><div class='writeup-example--japanese'>猫（ねこ）がいる。</div><div class='writeup-example--english'>There is a cat.</div></li><li class='writeup-example'><div class='writeup-example--japanese'>パトカーがいる。</div><div class='writeup-example--english'>There is a police car. (Operated by police)</div></li></ul> Because the things being described in these examples are considered to be alive (or operated by something that is alive), いる is the verb that will be used. ある is used for non-living things. The polite form of いる conjugates as います. Due to the る being removed, we can determine that いる is a る-Verb (Ichidan verb). The kanji form of 居（い）る is quite common, and should be learned as early as possible to save any confusion while reading. There is no nuance difference between this expression being used with or without kanji, and is up to the preference of the writer.<ul class='writeup-examples--holder'><li class='writeup-example'><div class='writeup-example--japanese'>私（わたし）は、彼女（かのじょ）が居（い）る。</div><div class='writeup-example--english'>I have a girlfriend.</div></li></ul><div class='writeup-caution'><div class='caution-header'>Caution</div>The が in がいる is often omitted in casual speech, or writing that behaves like casual speech (manga, instant messaging, etc).<ul class='writeup-examples--holder'><li class='writeup-example'><div class='writeup-example--japanese'>そこに警察（けいさつ）居（い）るよ。</div><div class='writeup-example--english'>There is a cop over there. </div></li></ul></div></div>

Grammar Info

が居(い)る

To be, There is, To remain (in a state)