1.
He eats so slowly.
He breakfasted for 45 minutes. 2.
He wolfs down on his food.
He breakfasted in 10 minutes. 1.
He breakfasted on canned peaches for a month. 2.
He breakfasted on canned peaches in ten minutes. 1.
He breakfasted on that cake for a week. 2.
He breakfasted on that cake in a week. 1.
He had breakfast in ten minutes. 2.
He had breakfast for ten minutes. 1.
The parents wanted to escape the kids, so they dined for 3 hours at that restaurant. 2.
The monks fast all week and dine in half an hour on Friday. 3.
Before the cinema, we had dinner in 30 minutes. 4.
We had dinner for 30 minutes.