When they have been scalding an hour, increase the fire till they boil.
When they have been on the fire between two and three minutes, turn the waffle-irons over--when brown on both sides, they are sufficiently baked.
When they have been in a week, take them out, and wipe them carefully with a soft cloth.
When they have been tarnished by age or accident, their lustre may be restored by strewing on them some fuller's earth, carefully powdered and cleared of sand and dirt, and then rubbing them gently with a linen cloth, or a little putty.
Copper boilers and saucepans are apt to become leaky, when they have been joined or mended, or from bruises, which sometimes render them unfit for use.
When greens are quite fresh gathered, they will not require so much boiling by at least a third of the time, as when they have been gathered a day or two and brought to the public market.
It is very easy to perceive the source of those errors, into which men, otherwise extremely profound and very enlightened have fallen, when they have been desirous to speak of the soul: to describe its operations.
As when they have been seen with their Spirits, or seen secretly Feeding any of their Imps.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "when they have been" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.