my last weekend個作文幫小妹檢查一下,有沒有錯的語法

題目：

my last weekend個作文幫小妹檢查一下,有沒有錯的語法
I have a busy last weekend .Saturday morning .I did my homework and read books .After lunch .I helped my mom cleaned the room .In the afternoon .I went shopping with my parents .Sunday moring.After breakfast .I visited grandparents with my dad .We were watched TV togrther .In the afternoon .I played the piano and played computer games .This is my last weekend . They are bust .But I liked my last weekend .Because I am happy.

解答：

I helped my mom cleaned the room .We were watched TV togrther .They are bust這些句子
錯了