5月8日是母亲节用英语怎么说过去式

"May 8th" is the past tense of "Mother's Day."

Mother's Day is a holiday celebrated annually on the second Sunday of May. It is a day to honor mothers and motherhood. The holiday has its origins in ancient civilizations, but it was officially recognized as a holiday in the United States in 1914 by President Woodrow Wilson.

Examples:

"I sent my mother a card on Mother's Day last year." (我去年在母亲节给我妈妈寄了一张卡片。)
"We had a family dinner to celebrate Mother's Day." (我们举办了一次家庭晚餐来庆祝母亲节。)