book

Yes, we add the -ed endings to a verb when we want to convert it into adjectives. In this case, booked is used to describe "the rooms", so it is grammatically correct.

Hi, ilko,

@ilko mitrikov posted:

Is this sentence correct ? He called me up and said that they have all the rooms booked .

In this sentence. I see that you are trying to use the indirect speech and the passive causative. So, the tense of 'have' should be consistent with the other two verbs 'said' and 'called'.

@ahmed_btm posted:

In this sentence. I see that you are trying to use the indirect speech and the passive causative. So, the tense of 'have' should be consistent with the other two verbs 'said' and 'called'.

I agree that "have" can be changed/backshifted to "had"; however, "have" works, too, assuming the speaker of the sentence "He called me up and said that they have all the rooms booked" believes all the rooms to still be booked.

I do not view this as a passive causative. If it were a passive causative, a "by"-phrase could suitably be used at the end: "He called me up and said that they have/had all the rooms booked by their front-desk clerks."

But that does not strike me as the intended meaning. Normally, the sentence "They have all the rooms booked" would be used in a sense closely (and historically) related to the present perfect: "They have booked all the rooms."

Cp.: "I have the letter written" can be used instead of "I have written the letter."