This is the 8736th most frequent Japanese word.
書け
"書け" means "Write."
In this imperative sentence, '書け' is used as the command form of the verb '書く', instructing someone to write.
文章をきれいに書け。
Write the sentence neatly.
Here, '書けそう' suggests the potential ability to write, applying '書け' in a conditional context to express capability.
書けそうなことを教えてください。
Please let me know what you think you can write about.
In this sentence, '書ける' is used in a potential form, indicating readiness or ability to write.