One interesting influence of Chinese on Esperanto is that you now have two ways to use adjectives as predicates. To say "Anna is beautiful" you can use the copular verb est:
Anna est bela.
Which is like English and most European languages. But you can also say
Anna belas.
That is, you turn the adjective to a verb and use it as a predicate directly. This mirrors the syntax of Chinese.
It is not a verb form. It is just a short form. Both forms can be used as predicates but have different meanings.
For example, "ты болен" and "ты больной" both mean "you are sick", but in the first case it means a temporary state.
Another example, "эта юбка коротка" and "эта юбка короткая" both mean "this dress is short", but in the first case it has an implication of being short relative to something. For example, you would use first form to mean that this dress is short for you.
