The past is always tense, the future perfect.
An actor I know is a dimwit who can't count higher than the fingers on his hands. But once he gets on stage, the audience goes so wild, you'd think the house would split in two.
小说是一面沿着大路携带的镜子。有时它向你展示天空的蓝色,有时则是路上搅动的泥泞。