"Jemand sieht den Vater."

[amitdatta]

Why not 'Someone is seeing the father'?

[christian]

The German doesn't cover this meaning.

[Faerengol]

Jemand also translates as "anybody", no? It only accepts "somebody" as correct.

[christian]

In this case, only "somebody" and "someone" are correct. You can't assume that all translations of a word are correct in every context.

[Faerengol]

It also doesn't like "anyone", which is even in the list when you peek.