Delayed neutron analysis is becoming increasingly useful for these studies.

He had proved before that any information, even the most trivial, could at some point become useful.

Can such art ever become popular and useful to the society at large?

In a peculiar way, her background in theater has become useful.

He was becoming less useful by the day, and more irritating.

For some reason, I seem to have become useful.

So, although cash levels remain important to managers, they have become less useful as market indicators.

With every passing month, cellphones are becoming even more useful.

Then there's the unlimited data, which is becoming more and more useful.

He's become more than a little useful to our Master.