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 verb of vigor is?
• Identify the word that can be used as both singular and plural.
• Are you an early riser? Here early is?
• At last he came round to their belief. Here round is?