以下是一些适合贺卡的英语祝福语，你可以根据具体情况选择或进行修改：

1. "Happy Teacher's Day! Wishing you a wonderful year ahead with great joy and success."

2. "Thank you for being an amazing teacher. Wishing you all the best and a fantastic year ahead!"

3. "Best wishes for a joyful and fulfilling year as you continue to inspire us all."

4. "On this special occasion, I want to express my gratitude for your dedication and hard work. May your days be filled with happiness and your heart with joy."

5. "Happy Teacher's Day! May your days be filled with laughter, love, and endless inspiration."

6. "You are an incredible teacher, and I'm grateful for the knowledge and wisdom you've shared with us. Wishing you a year of happiness and success."

7. "Thank you for being an amazing role model. Wishing you a year filled with joy, laughter, and success."

8. "Happy Teacher's Day! Your passion for teaching and dedication to your students is truly inspiring. May your days be bright and your heart be filled with happiness."

9. "On this special day, I want to thank you for all your hard work and dedication. May your life be filled with happiness and success."

10. "Wishing you a Happy Teacher's Day and a year filled with love, laughter, and endless inspiration."