No they cannot, at least not most of them. They are disabled in such a way to prevent them from being fixed. The airframes themselves are compromised, and that’s apart from the fuel lines they’d Have cut, the electronics they’d have destroyed etc.
You can look at photos of them online, they cut big holes into the airframes, destroyed propellers and landing gears, cockpits and displays etc. Not only would you need to replace every part, for which you have no supplier since US isn’t willing to sell, you also need to replace the entire airframe, which again, you’re absolutely not getting, and even if you did, you’d be spending more money to fix this aircraft than it would take to buy an entirely new aircraft of the same capability from say China.
And even after you spent more than the amount of money needed to buy a new one to fix it, you’d have no way to ascertain if it’s Air-worthy given you have no testing facilities for said aircraft and if anything goes wrong, no source for spare parts.
Bottom line is; No, they cannot be repaired.
Remember how Pakistan fixed sweedeish airey.. those yet were almost 70 percent damage by terrorists
Those were only airframe repairs. Something Pakistan has the capability to do and did so with the OEMs plans, those weren’t even “repairs” they were full airframe rebuilds At that point.
Any damaged electronic Components were bought from Sweden and only installed by PAC.