O come O come Emmanuel,
And ransom captive Israel,
That mourns in lonely exile here
Until the Son of God appear.
It uses the imperative mood (come, come, ransom), the indicative mood (mourns) and the subjunctive mood (appear).
This sentence uses three moods, but it also packs in a good deal of Christian theology, which makes it problematic in an English class, so is there a well-known secular sentence that uses all three of the imperative, indicative, and subjunctive moods?