十分にありますから。
jūbu ni arimasu kara
JA
Because there is more than enough of it.
このお菓子は十分にありますから、どうぞたくさん食べてください。
There is more than enough of this candy, so please eat as much as you like.
Etymology
"十分" comes from Middle Chinese, originally meaning "complete portion", and entered Japanese vocabulary by the 8th century. The sentence structure follows modern Japanese grammatical conventions for polite speech.
Memory Aid
Break the phrase down: "jūbu" means enough, "arimasu" means there is, "kara" means because. Practice saying it piece by piece to remember the full polite phrase.
Related Words
十分ありますから