Questions & Answers about Kardeşim çay seviyor.
The suffix -(I)yor is the present continuous (progressive) marker. The capital I stands for a vowel that harmonizes with the root’s last vowel. For sev- (root of sevmek, “to like”), the last vowel is e (front unrounded), so we use -iyor.
Breakdown:
• sev (root)
• + i (vowel for harmony)
• + yor (progressive)
→ sev-i-yor = seviyor (“is liking/liking”)