He was unable to attend the meeting.
She was unable to attend the meeting.
He is unable to fix the issue alone.
They are unable to access the website.
I’m unable to attend the meeting today.
She is unable to log in to her account.
I am unable to attend the meeting today.
We are unable to finish the work on time.
He is unable to drive because of the storm.
He was unable to sleep because of the noise.
I was unable to understand the instructions.
We are unable to deliver the package on time.