Practice

Watashi wa Tanaka desu. : I am Tanaka.
Watashi no namae wa Tanaka desu. : My name is Tanaka.

Kanojo wa Youko desu. : She is Yoko.
Kanojo no namae wa Youko desu. : Her name is Youko.

Kare wa Suzuki san desu. : He is Mr. Suzuki.
Kare no namae wa Suzuki desu. : His name is Suzuki.

Anata no namae wa nan desuka . : What is your name ?
Anata wa nan toiu namae desuka . : What is your name ? (What name do you have?)
Anata wa dare desuka ? : Who are you ?

Kare no namae wa nan desuka. : What is his name?
Kanojo no namae wa nan desuka.: What is her name?

Kare wa dare desuka . : Who is he ?
Kanojo wa dare desuka. : Who is she ?

Kore wa nan desuka . : What is this ?
Are wa nan neduka . : What is that ?
Sore wa nan desuka. : What is it ?

Practice : There is / are . . .

Shounen ga imasu. : There is a boy.
shounen : boy
iru : there is / are...
(i-nai, i-masu, iru, iru-toki , ire-ba, iro ,iyou, ita)

Shoujo ga imasu. : There is a girl.
shoujo : girl

Otokonohito ga imasu : There is a man.
otoko : male
hito : man , human
eg. onnanohito : lady, woman

Niwatori ga imasu. : There is a hen.
niwatori : hen / chicken

Teeburu ga arimasu : There is a table
teeburu : table
aru : there is / are
(nai, ari-masu, aru, aru-toki, are-ba, are, (arou), atta)

Isu ga arimasu. : There is a chair.
isu : chair

Enpitsu ga arimasu : There is a pencil.
enpitsu : pencil

Pen ga arimasu. : There is a pen.
pen : pen (same!)

If you say " There is / are ..." for animals including human, "iru" is used. For "thing", "aru" is used.