Persian to Latvian: the person under an obligation can take a dative form
The Persian ending identifies who has to act
Bāyad ānjā bāšam means that I have to be there in the University of Texas subjunctive lesson. Bāyad itself does not change for the person under the obligation; the following verb identifies that participant. A Latvian translation must therefore recover the first-person responsibility rather than treat the impersonal expression as a separate person issuing an instruction.
The same Persian lesson distinguishes bāyad from šāyad, expressing necessity and possibility respectively. A message saying that somebody may be there is not the same as one requiring their presence. Changing only a short word can change whether the recipient is reading a tentative prediction or an obligation. That difference belongs in the target construction, not merely in an explanatory comment.
Latvian dative does not always mean a receiving participant
The Latvian treebank documentation illustrates man jāskatās spēle, describing my having to watch the game. The first-person participant has a dative form in this necessitative construction. A Persian reader should not interpret that case as evidence that the game is being watched for me by an unnamed other person.
Another documented example, zēnam jāuzraksta mājasdarbs, puts the boy in the dative and the homework in the nominative. The boy has to write the homework. The nominative item is not the actor, and the dative participant is not a recipient to whom somebody else hands the assignment. Case forms need to be interpreted with the obligation construction.
These Latvian examples demonstrate a target pattern; they are not complete translations of the Persian presence sentence. Their value for Persian speakers is the role contrast. Persian can identify the obligated person through the following verb ending, whereas the illustrated Latvian construction places that person in a dative phrase. A different surface form need not change the person responsible.
Respectful address and responsibility are separate decisions
Persian Online notes that šomā can refer either to several addressees or respectfully to one person. In an obligation addressed to šomā, plural-looking address does not establish that several people must act. The surrounding exchange determines whether the instruction concerns one respected recipient or a group.
Combining those two source facts prevents a common misreading of instructions: the expression of necessity does not itself identify the actor, and the address form does not always establish a head count. A Latvian rendering must resolve both questions. An obligation addressed to one customer should not silently become a task allocated to an entire group.
For this direction, read a requirement as a relationship among necessity, participant and action. Identify whether the Persian speaker expresses an obligation or a possibility, use the following verb and address context to identify the participant, and interpret the target dative within its construction. That preserves responsibility even when the most conspicuous Latvian noun form looks unlike an ordinary subject.
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