Because she's shown such little apparent progress, you've become ever more worried.
Their bodies were discovered when friends who'd been trying to contact one of the women became worried and called the police.
And many government officials around the globe have become worried.
But over an hour had gone by since he left her alone, and she was becoming very worried.
When he did not appear at their shared workplace, she had become worried.
Our friends were becoming worried and I had no means of knowing how much they knew or guessed.
The stock market is suddenly becoming worried about the health of the economy.
After the first big shock of seeing him, she had become worried and anxious.
When you didn't show up at the plant, we became worried and started a search.
It showed that state residents were becoming worried about the effects of growth and development on their personal lives.