Lexical verbs typically express action, state, or other predicate meaning.
In contrast, auxiliary verbs express grammatical meaning.
The verb phrase of a sentence is generally headed by a lexical verb.
[1] Lexical verbs are categorized into five categories: copular, intransitive, transitive, ditransitive, and ambitransitive.
[2][3] The descriptor lexical is applied to the words of a language's lexicon, often to indicate a content word, as distinct from a function word.