"I sincerely apologize for my thoughtless comment; it was insensitive, and I regret saying it."
Apologies
"I'm sorry for arriving late to the meeting; I should have better managed my time."
Apologies
I want to apologize for the delay in responding to your email
Apologies
"I would have completed the task, but I had too many other things on my plate."
Excuses
"I didn't complete the assignment because I had a family emergency."
Excuses
"I didn't meet the expectation because the task was too challenging for me."
Excuses
"I missed the deadline because my computer crashed, and I lost all my work."
Excuses
I'm sorry for the mistake in the report
Apologies
