Still, there have been frequent reports that the relationship between the companies has become strained.

But there were signs that their relationship had become strained.

As a result, relations between the two countries have become strained.

The conversation of the others in the dressing-room had become strained.

By 1940, relations between the company and the Admiralty had become strained.

In recent months, the relationship between the Army and the revolution has become strained.

Henry was getting back to normal, his voice becoming less strained.

This has led to situations in which relations between writers and viewers have become strained.

Things have become so strained, he seizes every opportunity to spite Mother.

During the early 1950s, however, his voice became strained and was reduced to a growl.