Finally,At last,In the end
After trying three times, she finally managed to pass her exam.
John has finally a job.
James has paid me that money at last.
When at last they found him, he was almost dead.
In the end
I left in the middle of the film.
Did they get married in the end.
The tax man will get you in the end.
At the end
A declarative sentence has a full stop at the end.
I wish I was paid at the beginning of the week and not at the end.