A10
core
Scene core
Events
Identity / Classification
What is it? Who is who?
basic
Copular clause
Predicate nominal
Classification
意味
A relation that identifies, names, classifies, or equates one participant with another role, class, or label.
見分け方
Ask whether the sentence says that X is Y or belongs to a class.
例
単語
doctor|teacher|friend|problem
フレーズ
my brother is a doctor|this is a mistake
文
She is a doctor.
Visual guide
Basic shape
Identity/class frame: X = Y She = a doctor person = class/role Meaning: X belongs to Y
Compare shape
Same link, different marking: [She] [is] [a doctor] [She] [doctor] zero BE [She] [doctor-CASE] Marking changes; X = Y stays.
言語別ビュー
母語の仕組み
日本語
表れ方
strong
重要度
Identity and classification use noun predicates with the copula, especially in polite style.
彼女は医者です。
As for her, doctor is.
学習言語では
英語
表れ方
strong
難易度
English identity and classification commonly use 'be', often with an article before singular count nouns.
She is a doctor.
is a doctor = classification
よくあるつまずき
Learners may say 'She doctor' or omit the article in 'She is a doctor'.
Same block, different coding
Both languages use this block strongly, but they signal it differently. Focus on form changes, not only meaning.