Shouting loudly, the coach called his team.
The underlined part is a/an-

• Shouting loudly, the coach called his team.
- The underlined part is a/an- Participial phrase.

• Participial/Participle phrase
- A Participle phrase is a group of words that includes a participle (a verb form used as an adjective) and any accompanying words that modify or complement it.
- Participle phrase হলো একটি বাক্যাংশ যা একটি participle (অর্থাৎ, verb-এর কোন form যা adjective হিসেবে ব্যবহৃত হয়) এবং তার সাথে সম্পর্কিত অন্যান্য উপাদান (যেমন modifier বা object) নিয়ে গঠিত।
- এটি সাধারণত বাক্যে adjective বা adverb হিসেবে কাজ করে।

• "Shouting loudly" is a participial phrase because:
- It begins with the present participle "Shouting" (verb + -ing).
- It modifies the noun "coach" (answers: Which coach? → The one shouting loudly).

• Structure: Participle + ext, subject + verb + ext.