YOU SAID:
hi i am dog, i have graduated school for about 100 years.
INTO JAPANESE
こんにちは私は犬です、私は約100年間学校を卒業しています。
BACK INTO ENGLISH
Hi I'm a dog, I've been graduating from school for about 100 years.
INTO JAPANESE
こんにちは私は犬です、私は約100年間学校を卒業しています。
BACK INTO ENGLISH
Hi I'm a dog, I've been graduating from school for about 100 years.
That didn't even make that much sense in English.