Q: Is this correct grammar? Is this correct grammar? 
"Last year my wife and I clocked up twenty years here in this town"

A: "Last year my wife and I realised we had clocked up twenty years here in this town."
"By last year my wife and I had clocked up twenty years here in this town."
"Last year my wife and I celebrated clocking up twenty years here in this town."
Clocking up is the process of accumulating the time, so we should avoid implying it all happened in one year.
