Он сказал отцу, что, вероятно, не в

Он сказал отцу, что, вероятно, не вернется до воскресенья.

Результаты (английский) 1:

He told his father that, probably won't be back until Sunday.

Результаты (английский) 2:

He told his father that he probably will not be back until Sunday.

Результаты (английский) 3:

He said his father, that, perhaps, will not return until Sunday.