One way to avoid adding extra sounds when pronouncing difficult English words is to focus on articulation and clarity. Here are some tips to help you pronounce complex words like “through” or “comfortable” clearly and accurately in both casual and formal spoken English:

1. Break the word down: Try to break down the word into smaller syllables and practice each part separately before putting them together. This can help you focus on the correct sounds and pronunciation.

2. Listen carefully: Pay attention to native speakers pronouncing the words correctly. You can watch videos, listen to audiobooks, or practice with language learning apps that have audio features to improve your listening skills.

3. Practice regularly: Regular practice is key to improving your pronunciation. This can include repeating difficult words multiple times, using pronunciation guides, and engaging in speaking activities that involve these words.

4. Record yourself: Record your pronunciation attempts and listen to them critically. This can help you identify where you are adding extra sounds or mispronouncing certain parts of the word.

5. Get feedback: If possible, have a native speaker or a language instructor provide you with feedback on your pronunciation. They can pinpoint areas where you may be adding extra sounds and provide guidance on how to improve.

By incorporating these tips into your language learning routine, you can enhance your pronunciation skills and become more confident in pronouncing difficult English words clearly and accurately.