I'm studying English.

I study English.

I study English at home.

I am studying English now.

I'm studying English at home.

I have been studying English for four years.

I study English every day.

I study English and Japanese.

I am studying English in my room.

I have been studying English for five years.

I have been learning English for five years.

I study math as hard as English.

I don't study math as hard as English.

I've been studying English for three years.

I'm studying English because I plan to go to the United States.

I study Lojban.

I'm learning music.

I study Spanish.

I'm studying music.

I study Korean.

I am learning Quechua.

I learn Quechua.

I study psychology.

I'm learning Japanese.

I'm studying Toki Pona.

I'm learning Toki Pona.

I am studying Japanese.

I study mathematics.

I'm studying Farsi.

I'm learning Esperanto.

I study Esperanto.

I study French.

I'm studying grammar.

I study Japanese history.

I study art history.

I'm studying art history.

I am learning Turkish.

I learn the language by myself.

I learn Turkish.

I'm learning the Basque language.

Why am I studying Icelandic?

I'm learning Chinese on my own.

I study French at home.

I'm learning French.

I study many languages.