Hayley教口语，“系(动)词”用英语怎么说？

language specialized

/ˈkɒp.jə.lə/

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a type of verb, of which the most common is "be", that joins the subject of the verb with a complement

一种动词类型，其中最常见的是"be"，它用补语连接动词的主语;系(动)词

In the sentence "You smell nice", "smell" is a copula.

在 You smell nice这句话中，smell 是系动词。

It is formed with the copula to be + infinitive marker + infinite verb.

它由连接词(to be) +(不定式标记)+无限动词构成。