Breakdown of Сильный человек работает быстро.
человек
person
работать
to work
быстро
fast, quickly
сильный
strong
Questions & Answers about Сильный человек работает быстро.
Why does сильный end in -ый?
It is an adjective describing человек. Since человек is a masculine noun acting as the subject of the sentence, the adjective takes the basic masculine ending -ый.
Does человек mean "man" or "person"?
Why does работает end in -ет?
This is the "he/she/it" form of the verb работать (to work). Because the subject of the sentence is one person (человек), we drop the -ть from the dictionary form and add the third-person singular ending -ет.
How do we know быстро means "fast" as an adverb and not an adjective?