You have been quiet a day too long.

I thought Alkibiades had been quiet too long.

He had been quiet as long as he could.

Even today, he said, with the mills long quiet and many of the millworkers now shop owners, the Yemenis consider themselves "one big family."

She realized she had been quiet too long.

"You've been quiet too long," Melanie said on the radio.

He remained quiet so long, that I finally asked, "You still there?"

I realize I've been quiet too long when he turns around to see if I'm off the phone.

He had been quiet and morose all day long.