Potential Form

Vocabulary

食(た)べるた・べるru-verbto eat
行(い)くい・くu-verbto go
遊(あそ)ぶあそ・ぶu-verbto play
するirregularto do
来(く)るく・るirregularto come
話(はな)すはな・すu-verbto speak
日本語(にほんご)に・ほん・ごJapanese language
読(よ)むよ・むu-verbto read
泳(およ)ぐおよ・ぐu-verbto swim
見(み)るみ・るru-verbto see

The potential form expresses the ability to do something (“can do”).

Conjugation rules

Ru-verbs

Drop る and add られる.

食(た)べる→食(た)べられる
—can eat
見(み)る→見(み)られる
—can see

U-verbs

Change the last vowel う to え and add る.

行(い)く→行(い)ける
—can go
遊(あそ)ぶ→遊(あそ)べる
—can play
話(はな)す→話(はな)せる
—can speak

Irregular Verbs

する→できる
—can do
来(く)る→来(きた)られる
—can come

Usage Note

In the potential form, the object particle を is often replaced by が.

日本語(にほんご)が話(はな)せる。I can speak Japanese.
漢字(かんじ)が読(よ)める。I can read kanji.
ここから富士山(ふじさん)が見(み)える。You can see Mt. Fuji from here.

ら抜(ぬ)き言葉(ことば) (Colloquial Speech)

In casual speech, ら is often dropped from Ru-verbs.

食(た)べられる→食(た)べれる
見(み)られる→見(み)れる

Note: This is very common in everyday speech but considered grammatically incorrect in formal contexts.