Breakdown of Cuando llegue la ambulancia, atienda al paciente según vea necesario.
ver
to see / to look / appear
llegar
to arrive
la ambulancia
the ambulance
cuando
when (statement)
atender
to serve / to attend (to look after, pay attention)
necesario
necessary
el paciente
the patient
al
personal 'a' + the (marks a human direct object)
según
as (in the way that)
Questions & Answers about Cuando llegue la ambulancia, atienda al paciente según vea necesario.
Why is vea in the subjunctive here?
Because the clause starts with según (as / according to how) and refers to a future, unknown situation. At the time of speaking, the speaker doesn't know exactly what condition the patient will be in. When a manner clause describes an action whose execution is still pending or unknown, it requires the subjunctive.
Could I say como vea necesario instead?
Yes! Como, según, and conforme can often be used interchangeably to mean 'as' or 'according to how' in these sentences. All of them trigger the subjunctive here (como vea necesario, conforme vea necesario) because the exact circumstances of the patient's condition are still unknown.
Why is llegue also in the subjunctive?
Just like the manner clause with según, the time clause starting with cuando refers to an event that hasn't happened yet. Whenever cuando points to a pending future action (like the ambulance arriving), you must use the subjunctive.
Who is being addressed in this sentence?
The sentence addresses the formal usted ('you'). We know this because atienda is the formal command form of atender, and vea matches it in the corresponding subjunctive form. This formal tone makes perfect sense for instructions given in a professional or medical setting.
Why do we need al before paciente?
This is a contraction of the personal a and the masculine article el (a + el = al). Even though the patient is the direct object of the verb atender, the personal a is required because the patient is a specific person.
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