Grammatical mood 语气
(重定向自Grammatical moods)
In linguistics, grammatical mood (also mode) is a grammatical feature of verbs, used for signaling modality.
That is, it is the use of verbal inflections that allow speakers to express their attitude toward what they are saying (e.g. a statement of fact, of desire, of command, etc.). The term is also used more broadly to describe the syntactic expression of modality, that is, the use of verb phrases that do not involve inflexion of the verb itself.