He had gone away before I came. Here the word before is?

এই টপিকের আরও কিছু প্রশ্ন:

• She works hard. What part of speech is the word hard?
• The day of my sisters marriage is drawing near. The word near is?
• What is the noun form of the word Forget?
• The verb of vigor is?
• The adverb of the noun rotation is?