lo debbano fare

have to do it

→ lo
phrase Rare #44,206
have to do it Used with the verb dovere in the present subjunctive. The subject is plural: they/you all.
IT: Non credo che lo debbano fare oggi.
EN: I don't think they have to do it today.

Pensa che Tom e Mary lo debbano fare?

Do you think Tom and Mary should do this?

Pensate che Tom e Mary lo debbano fare?

Do you think Tom and Mary should do this?

Lei pensa che Tom e Mary lo debbano fare?

Do you think Tom and Mary should do this?

Io mi chiedo perché Tom e Mary non lo debbano fare.

I wonder why Tom and Mary don't have to do it.