How to Use "illegible" with Example Sentences

1. This note from grandpa is almost illegible .
2. I cannot read this note , it 's illegible .
3. Device that reduces paper documents to illegible fragments .
4. The new course values highly to scientific method education , but many physics teachers are rather illegible in it .
5. By month 's end , the papers were more sellotape than newsprint , big photocopied sections glued in to replace torn-out or illegible pieces and so on .