Questions & Answers about Vens cá debater ou ficas aí?
Why does this sentence use vens (from vir) rather than vais (from ir)?
How do the spatial adverbs cá and aí map out the locations in this question?
cá means 'here where I am' (the speaker's location, often used with verbs of motion), while aí specifically means 'there where you are' (the listener's location). The speaker is directly contrasting their own physical space with the listener's.
Why is debater added immediately after vens cá without a preposition like para?
The English translation says 'Are you coming', but vens and ficas are in the simple present tense. Is this normal?
Yes, this is very common. In conversational Portuguese, the simple present tense is frequently used to talk about immediate or near-future plans, very similar to how the present continuous is used in English.