The phrase "at last back" is correct and usable in written English.
It can be used to express a sense of relief or satisfaction upon returning to a place or situation after a period of absence.
Example: "After months of traveling, I am at last back home, ready to relax and enjoy my own space."
Alternatives: "finally returned" or "back at last".
Nevertheless, the Tories are at last back in business.
Carles Puyol, its captain, is at last back in defense after having missed months because of injury.
When the sound and fury finally subsided, Williams was at last back in the semifinals, and will face Sara Errani of Italy.
At last, back in his hotel room, Kevin wandered around in such a stupor that he packed too slowly and missed his plane.
Once when he was twelve, on a trip with his family that took the path of a pachinko game — beginning in Rome, shooting up to London, and falling back and forth between various countries until they landed, at last, back in Italy's slot.
That the military budget is at last back on the table as a legitimate subject of political debate marks a historic turning point--an unmistakable sign that the Reagan era, when the Pentagon was gorged with literally more money than it knew what to do with, is finally waning.
Photograph: Brian Lawless/PA Updated at 10.48am GMT 10.17am GMT Eurozone retail sales slide at Christmas Back in the eurozone -- and the latest retail sales figures, just released, are a shocker.
Six months after NBC's disastrous late-night experiment ended, Jay Leno is back at 11 30 and back on top in the ratings.
You could almost feel the excitement at CES 2010 back in January.
The unbeaten run came to an end at Christmas, with back-to-back defeats in matches against West Bromwich Albion causing the club to fall to fourth place.
Updated at 10.44am GMT 10.30am GMT Back to the women's event.
