You see them many times decorated with red envelopes and messages of good fortune.
=You see them decorated with red envelopes and messages of good fortune many times.
备注(1):many times 短语中,times表示次数,不是作时间状语从句,而是作频度状语。
备注(2):decorated with red envelopes and messages of good fortune 为过去分词作宾雨补足语。