Sentence examples for had to maintain from inspiring English sources

I had to maintain my focus throughout.

"I too had to maintain internal order.

"You had to maintain the building.

And you had to maintain standards.

He also had to maintain the heating and air-con.

But to survive they had to maintain a superb international service.

Users had to maintain a minimum ratio of material uploaded to downloaded.

He knew, however, that he had to maintain the dignity and decorum expected of a yokozuna.

He had to maintain internal order and to conduct diplomatic relations with other leaders.

"He had to maintain a certain sanity and not have negative thoughts".

Why did he feel he had to maintain it for so long?