Translation:I think he will never be able to forgive.
"I think that he will never be able to forgive" is still being rejected on 15 December 2020, which is unforgiveable. I respect the fact that whilst 'that' or 'que' is required in French it is optional in English. However, that doesn't make it wrong to use it. I have reported it, as have others, so far to no avail. C'mon, Duo!