Mood shows the attitude of the speaker or the writer to the action or state described by the verb.
1) The Indicative is the verb used in ordinary statements and questions:
She went home.
Has she called yet?
2) The Imperative is used to give orders and instructions:
Go home.
Come and see me.
3) The Subjunctive is used to express doubts, wishes, etc. It is not used much in English any more and exists in a few phrases:
If I were you, I'd speak to her about it straightaway.
Be that as it may
See also:
Browse the following links to other content related to 'Mood' from the 'Verbs and Tenses' grammar category:
