Возможно, какая-нибудь срочная рабо

Возможно, какая-нибудь срочная работа задержала его, или, может быть, он забыл что должен прийти сюда.

Результаты (английский) 1:

Perhaps some urgent work detained him, or maybe he has forgotten that I should come here.

Результаты (английский) 2:

Perhaps some kind of urgent work detained him, or maybe he forgot that I should come here.

Результаты (английский) 3:

It is possible, there is to be any urgent work detained his, or, may be, he has forgotten that should come here.