Unique rules when forming that grammar are highlighted like this
Example sentences follow these rules too!
Joining and Nesting Markers:
Verb[た/る] - means that dictionary form and ta form are accepted.
Verb[causative[て]] - means て form of the causative form of the verb.
Details
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使用域硬い
Information
(A) わ (A) わ is a pattern used to emphasize that (A) takes place repeatedly or its large degree/amount - often to the speaker's astonishment. 出るわ出るわ is one of the common set phrases.