I just sent him a messege and told him that there's gonna have a heavy rain tonight and reminded him to bring his umbrella.
PS.
(1)rain cats and dogs这平常英美人士不常用,或者说几乎不用
(2)reminded him not to forget bringing an umbrella:要再加forget也行(就是多了几字),但应用to bring
(3)在Urban Dictionary有写: Instead of saying "I just text messaged her." You would say- "I just texted her."
所以楼上粉粉的猪猪公主写挺好的(当然她整句都挺好的)
有问题再问喔=)
参考资料:myself