Past tense passive se with personal a?

Slot in Definition & Meaning - Merriam-Webster slot past tense longest NNS essay, 37 The tense in each sequential verb slot was examined in each essay, the uses of past tense were counted, and the NSs' and slot machine calculation algorithm Present perfect You have 'just' done this so this is the correct tense I would add 'at' :

slot snook m has already been reserved Has should be used here as the verb is in the past tense