Quite some

"Yes, a number of days ago. We had quite some important business to transact. He said he would come back the next day and sign some papers, and fix up some other matters. But he didn't come."

It's been quite some time since we've just sat down together for a quiet meal. Nobody's going to interrupt us, so we can talk during supper.”

“That's quite some talent you've got,” Bert Richards said. “I'd like to hear you play something from an older classical composer.[…]”