Sentence examples for have existed some from inspiring English sources

Though there have existed some methodologies for solving this problem, such as genetic algorithms, gradient descent algorithms and neural networks, it is hard to say which one is more appropriate and more feasible.

For almost as long as human beings have existed, some have had more than others.

Comparison of demosponge and eumetazoan development and body plans minimally provides insights into their last common ancestor, which appears to have existed some 800 million years ago [ 39].

If ever any bad pictures had existed some deviltry burned them, or had them wither in her gaze.

Yet the virus behind it had to have existed for some time before it was discovered.

Limited alternatives to employer-sponsored medical plans have existed for some time.

Such systems have existed in some form for about a decade.

And a subduction zone could not have existed unless some type of plate tectonics was already at work.

"I never remember feeling a real hatred for the Lakers that might have existed for some of the other teams back east," said Bob Cousy, the Celtics Hall of Famee guard.

Yet sperm banks with seed from famous and accomplished men have existed for some time with no sign of a mass rush to use them.

The first printed almanac appeared in Europe in 1457, but almanacs have existed in some form since the beginnings of astronomy.