The phrase "are basically only" is correct and usable in written English.
It can be used to emphasize that something is fundamentally or primarily limited to a specific aspect or characteristic.
Example: "The results of the experiment are basically only relevant to this particular study."
Alternatives: "are essentially just" or "are primarily only".
"There are basically only two things you can do," she continues.
"What you're left with is bots that are basically only able to bump into each other, flip each other and pound each other," one fan, Greg Nichols, said by e-mail.
According to Muriel Conner, the secretary and treasurer of Allcock Manufacturing, who has worked with her husband at the company since 1947, "there are basically only two types of traps.
The effect of volatility for us meant we are basically only short and have been only short for a couple of years.
There are basically only two kinds of people who will be signing up for it: those who live in places that cant be reached by cable or if they really want it".
The company's breaking out of stealth mode today at TechCrunch50 with a service that could rid both publishers and advertisers of the extremely ineffective ad campaigns that are basically only beneficial to the networks selling them.
When I was living in Japan, I was basically only speaking English and Japanese" explains vocalist Hildur Stefánsdóttir.
For a long time this was not a particularly big problem, because there were basically only two kinds of episodic television.
That meant there were basically only two questions policy makers asked when considering most regional conflicts: Would intervention help contain Communism?
Now it's so difficult to imagine how to accelerate these particles that there is basically only one good idea, and that is these particles are accelerated when stars collapse.
The problem with that is there's basically only one or two networks in the United States where I can sell it as a TV series, so that's it.
