"trend of which" is a correct and usable phrase in written English.
It is typically used to refer to a particular trend or pattern that was previously mentioned or discussed. Here is an example: "The trend of which he spoke was the decreasing popularity of traditional media in the age of social media." In this sentence, "the trend" is referring to a specific trend that was mentioned earlier, and "of which" is used to connect it to the previous discussion about traditional media and social media.
However, it was a trend of which one British sports star was already acutely aware.
Power grab Gang Länder Lessons from Lagarde ReprintsThe second trend, of which Askania's travails are one example, is a sharp rise in specific property crimes.
The evaluation of lithium ion diffusion coefficients shows its fast diffusion in both the cases, the trend of which changed with the increase in the number of cycles.
I'm not naive enough to suggest that these three fine examples constitute a sea change in the way books are commissioned, but I do think they illustrate a trend of which publishers would do well to take heed.
So no, this pyjamas trend of which you hear speak does not mean your five-year-old cotton pyjamas that your Auntie Mavis gave you for Christmas, but rather swanky, matching and highly patterned trousers and button-down tops.
There was nothing unusual about finding, at the core of a life-style trend of which the use of controlled substances is an integral feature, a group of full-time dropouts.
I do confess, however, to taking pleasure in the passing on of certain trends, of which I have silently disapproved.
Watching the video and reviewing my written observations allowed me to see trends of which students were engaged and how.
Powerful socio-economic and technological trends - of which the internet is just one - have revolutionised the way the world learns English.
Then, John McGuinness, 65, from Kettering, was told it was due to "being able to monitor the trends of which passenger spends what".
The Westernizers called for Russian art to heed European trends, of which the most important at the turn of the century was Symbolism, a dreamy, moody, often neurotic-seeming style.
