The phrase "appear to be intractable" is correct and usable in written English.
It can be used when describing a situation, problem, or issue that seems difficult or impossible to manage or solve.
Example: "The negotiations have stalled, and the differences between the parties appear to be intractable."
Alternatives: "seem to be unresolvable" or "seem to be insurmountable."
And yet many of the challenges it addresses remain -- poverty, violence, hunger, poor health, and on and on -- and often appear to be intractable.
I lead for the opportunity to mobilize people, resources, and ideas in trying to solve what, at first glance, appear to be intractable social problems.
Institutionalizing conservation planning will present substantial challenges, but none appear to be intractable.
Despite the apparent reduced complexity of a trait such as meat tenderness relative to growth, there appear to be a large number of QTL underlying variation in WBSF, and the identification of all of the mutations that underlie these QTL might appear to be intractable.
But on at least one key point, the Cambodians appeared to be intractable as the United Nations insisted on a tribunal that would not compromise on international standards of justice.
It remains to be seen whether Mr. Barak and Mr. Arafat will now agree to discuss a partial peace deal that leaves aside the thorniest subject; all sides say the issue of Jerusalem, in particular, appears to be intractable, making remote the prospects of a permanent peace agreement by year's end.
The critical need for human relevancy is not a new problem but a serious issue that has appeared to be intractable in the past, because of, at least in part, the paucity of critical human samples and information.
Hemipteran species are therefore more challenging to work with as they appear to be somewhat intractable to RNAi manipulations21.
While Congress in the past has waited until the last minute to raise the debt ceiling, a growing number of analysts say that the political disagreements appear to be more intractable this time around.
NMLs appear to be stubbornly intractable with respect to the corresponding problem for classical logic.
"Unfortunately, some of Trump's advisers and appointees appear to be willful, intractable, and committed to their own unspoken agendas, making their decisions without concern for him, his image or his campaign promises".
