1. I'm sorry that... [ex. I was so rude yesterday] 2. It's my fault. (= I am taking responsibility for the problem) 3. Oops, sorry. (for very small problems) 4. I should have... [ex. called you and told you I'd be late] 5. (formal) I apologize for... [ex. the delay]
Wound recovery practise suggests recovering strength of wounded tissue by replacing the dead tissue with a healthy tissue. Enzyme in Vitamin C helps in the development of Collagen, a protein that fortifies skin making it skin flexible and initiating wound recovery.