The enemy behind us presently exists solely to cut off our retreat.

Use only as directed.

Our party will resist to the bitter end.

She persists in saying that she is right.

He opposed the plan to the last.

Even then he did not allow himself to be discouraged.

He will have his own way.

He would have his own way.

The position held by the enemy is so important they will fight to the bitter end to hold it.

We can do nothing but wait for a while until the seats are available.

Keep to your own line.

You will have your own way.

I will help him no matter what you say.

Once you have decided to do something, stick to it.

He was stiff about it.

He will have his own way.

The customer insisted on a price reduction because of defects in the product.

He persisted in his opinion.

Only in theory, the project is possible.

That's just my opinion.