The phrase "in which when" is grammatically correct and can be used in written English, but it may not be the most commonly used phrase. It is generally used to introduce a subordinate clause that provides additional information about the time or location of an event. Example: The city in which, when I was a child, had a population of only 10,000 people has now grown to over 100,000 residents.
We Americans live in a society in which, when people feel threatened, they think about guns.
This behavior differs from previous results in which, when memory is unbounded, the two models behave similarly.
This is a hangover from a long-gone world in which, when we talk about hemlines rising and falling, we mean skirts.
He wants to build a culture in which, when the team has a bad day, players look at themselves and acknowledge that they have to improve.
Could this be one of those elections in which, when the votes are counted, the underdog turns out to be the top dog?
There are women perfectly happy to have agreements in which when you are out of town you can have a little fling on the side.
(Here's another biopic in which, when fame messes up the hero, his girlfriend ruefully announces, "I don't know who you are any more").
De Finetti is the name of the guy who first described this kind of trust table, in which when assessing the truth value of a conditional, the p q case makes a conditional true.
There are many years in which, when I put together a list of the best new films I've seen, I've hesitated and deliberated over which ones I feel most strongly about and should place at the head of the parade.
In fact, in psychological terms, the opposite can be true.' He considers student debt to be a classic example of the conundrum in which, when forced to behave a certain way, our attitudes shift to accommodate our new behaviour.
"We see a future in which, when you sit down in front of your television set, you will see ads that are more relevant for you," said Mr. Steib of Google.
