Volitional Form: 〜よう / 〜おう

The volitional can propose joint action or express the speaker’s intention.

For ichidan verbs, replace る with よう: 食べるたべる→食べようたべよう.

For godan verbs, change the final u-row kana to the o-row and add う: 読むよむ→読もうよもう.

The irregular verbs are する→しよう and 来るくる→来ようこよう（こよう）.

In conversation, the volitional often invites someone into an action: let’s go, let’s eat, let’s rest.

The subject is often omitted because the shared action is clear.

The same form can also show a personal decision: “I’ll do it.” In writing, it often appears before と思いますおもいます or inside quoted thoughts.

Compare 食べようたべよう and 食べたたべた.

よう marks volition for 食べるたべる;

た marks past.