Sentence examples for is often very difficult from inspiring English sources

But this is often very difficult.

The experimental determination of ϕ′ is often very difficult, expensive and requires extreme cautions and labor.

This is often very difficult to solve in practice particularly by applying a sole approach.

Exactly what losses or injuries are "natural and proximate" results is often very difficult to determine.

It is often very difficult to distinguish between bronze and brass merely by their appearance.

"If you've got children, finding 24-hour childcare is often very difficult," she said.

"It is often very difficult to gain consensus on the numbers of casualties in Iraq.

But it adds: "It has become increasingly apparent that this desirable outcome is often very difficult to achieve".

Connect with LGBT groups: When working on prevention, the data on marginalised populations is often very difficult to reach.

In practice, complete characterisation of residual stress states is often very difficult, due to limitations of facility access, measurement time or specimen dimensions.

However, it is often very difficult to obtain corresponding precise data and information in advance due to insufficient data, changing environment or new components.