The phrase "a first trend" is correct and usable in written English.
It can be used when introducing an initial observation or pattern in a discussion or analysis.
Example: "In our research, we identified a first trend indicating an increase in remote work among employees."
Alternatives: "an initial trend" or "a primary trend".
"Along with that is a second trend, in which people are choosing to retire in the region.
A second trend in the retail sector has been the growth of "big box" stores, or mega-retailers.
New generations of drivers will replace old ones rather than add to the total number.Then there is a second trend.
As this cacophony crescendoed, a third trend developed as political operatives realized they had more room to stretch the truth.
Moreover, these two trends occurred in the same decade, in concert with a third trend - the sharp rise in foreign official reserve accumulation.
There is a third trend that has been at work for more than a decade: the transition of American global power from informal to formal imperialism.
The two are also simultaneously at the forefront of a second trend — superangels going pro and becoming venture capitalists by also investing in more mature companies and building a firm instead of investing alone.
Such incubators typically take a large chunk of equity, which may scare off the entrepreneurs with the best ideas.Recently idealab! announced plans to go public, highlighting a second trend that is helping to institutionalise the venture-capital industry.
His disappearance into jail would be most damaging.Thailand is illustrative of a third trend: for conservative judiciaries, when a time-honoured political dispensation changes, to find themselves, in effect, part of the opposition.
Of course, the cloud-services providers themselves buy lots of servers, mainly Dell and HP ones but their huge size means they can drive a hard bargain on prices.The emergence of the cloud is also partly responsible for a third trend, "verticalisation".
