But when they are considered as desires, namely of liquid or solid aliment, their proximate cause consists in the pain of them, according to the sixth law of animal causation.
But when they are at rest they sit upright on their hind quarters.
But when they are about a month old a strong desire comes over them to go and lie down on the mud at the bottom of the sea, and then three remarkable things happen.
But when they are playful, or excited, they swing themselves to and fro and dart from branch to branch, almost as actively as the gibbons.
As soon as they are out of my sight I see clearly where my mistakes are; but when they are around me I forget my good resolutions.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "but when they are" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.