是要加-ing的 无论过去或现在或以后 ex: I always fail when cooking dinner. I'm always excited when riding the rollar coaster. I have always been imformed by my sister when talking. 不可以说 I always fail when cook dinner. I'm always excited when ride the rollar coaster. I have always been imformed by my sister when talk.本回答被提问者和网友采纳