A copula is a word followed by a descriptive complement to describe the state of the subject. The copula "Shi" and "Shi" in Chinese can be regarded as similar to the copula "Shi" in English. Chinese adjectives can be directly used as predicates to modify the subject, such as "he is handsome". At this time, there is no need to accommodate English "He is handsome" and write "He is handsome".
Example: acting: say, look, walk, listen, laugh, stare, fly, run, eat, sing, drink, drink.
Express the trend (trend verb): up, down, in, out, back, open, past, up, up, down, in, out, back, go, over, up, down, in, out, back, go, past.