The most serious complaint seems to be the attitude of doctors toward us.

In this case, if I did not intrude, you would have cause for serious complaint against me.

No - we've never had any serious complaints; in fact the whole country approved of the operation.

"No, but he's been here longer than me and we've never had a serious complaint against him."

Ensure the company does not have serious and unresolved complaints against it.

These men report fewer serious complaints about their health and are less likely to use drugs.

The work was hard but he had no serious complaints.

However, he no doubt suffered from a wide variety of serious physical complaints.

Colin laughed then and said there'd be very serious complaints from the patients one of these days, in that case.

Two months ago I had to have an operation for a serious complaint.