Casual Volitional Form

Genki has already shown the polite volitional form, which simply means adding ましょう onto the stem of a verb. Now it's time to learn the casual form, which is also relatively easy.

Ichidan Verbs

• Drop る and add よう
• 食べる -> 食べよう
• 寝る -> 寝よう

Godan Verbs

• Change the final sound to the お equivalent and add う
•  行く -> 行こう
• 待つ -> 待とう

Irregular Verbs

• 来る -> こよう
• する -> しよう

今週末大阪に訪ねよう。
Let's visit Osaka this weekend.

田中先生と日本語で話そう。
Let's speak Japanese with Tanaka-sensei.

明日誕生日に出かけよう。
Let's go out tomorrow for your birthday.

東京にかわいい服を買おうね。
Let's buy cute clothes in Tokyo.

The question particle か can be used with this form "to ask for an opinion in your offer or suggestion."

リーさんが買った映画を見ようか？
Shall we watch the movie that Lee bought?

今日は公園で運動しようか？
Shall we exercise at the park today?