Change the following sentence into simple sentence: He was ill but he came for rehearsal.

• But যুক্ত Compound sentence কে simple sentence এ রূপান্তর: 
- শুরুতে inspite of/despite বসে।
- person অনুযায়ী possessive form যেমন: my/his/her বসে। 
- প্রথম clause এর adjective এর noun form + দ্বিতীয় clause ব্যবহার করা হয়।
• Example: 
Compound: He is rich but he is unhappy.
Simple: Inspite of his richness he is unhappy.