Is the past tense word for drink drank or drunk?

For the present tense verb "drink", the simple past is "drank" and the past participle is "drunk". If this past participle is part of a verb phrase, it always appears with some auxiliary verb. However, the participle is often used as an adjective, as in the sentence, "That man is drunk." If "is drunk" were interpreted with "drunk" as part of the verb, it would mean that something else is drinking the man, a very unlikely occurrence! In contrast, "All the milk was drunk" does mean that something else drank the milk. Therefore, in that sentence, "drunk" is functioning as part of the verb phrase "was drunk", the past tense in the passive voice. "Was" is the auxiliary verb. "Drinked" is never correct outside quotation marks!