David used to spend a lot of money on clothes.

We used to spend the summer never leaving the area.

We used to spend a lot of time on the lake.

We used to spend the night there without any fear.

His work was such that sometimes he used to spend the entire night writing.

He also used it to spend time with his parents.

"I used to spend a great deal of time thinking that very same thought."

I used to spend 10 to 12 hours in my office.

"Sometimes I used to spend hours looking at the river from above."

He used to spend a lot of time with me.