Αν δεν βρεις το τηλεχειριστήριο, κλείσε την τηλεόραση από το κουμπί και έλα να φάμε.

Because βρεις fits a one-time, future/possible condition: if you don't find the remote in this situation.

A helpful way to think of it:

• αν δεν βρεις = if you don't manage to find it
• αν δεν βρίσκεις = more like if you aren't finding it / if you generally don't find it

So βρεις is the natural choice when the speaker means one specific attempt, not a general habit.

Also, βρεις is not past tense here, even though it comes from the aorist stem. In this sentence it refers to a possible future result after αν.

Because αν already introduces the conditional clause by itself.

Greek often uses the same kind of verb form after particles such as να, αν, όταν, etc., but you do not normally put να after αν here.

So:

• αν δεν βρεις = correct
• αν δεν να βρεις = incorrect

You can think of βρεις here as the form that αν requires.

Because this is not a negative command. It is a normal negative statement inside an if-clause.

• δεν is used for ordinary negation: if you don't find
• μη(ν) is used mainly with:
  • commands: Μην κλείσεις την τηλεόραση
  • να clauses: να μη φύγεις

So αν δεν βρεις is correct because the speaker is describing a condition, not telling someone don’t find it.

They are singular informal imperatives: commands to one person.

• κλείσε = turn off
• έλα = come

If the speaker were talking to more than one person, or speaking formally, the forms would be:

• κλείστε
• ελάτε

Also, both imperatives here are aorist imperatives, which is the normal choice for a single complete action:

• κλείσε = turn it off
• έλα = come

It means using the button, specifically the physical button on the TV itself, not the remote.

So the idea is:

• if you can’t find the remote,
• turn off the TV from the button / by pressing the button on the set

This use of από can sound unusual to an English speaker, because English would more naturally say with the button or using the button. In Greek, από is very common in this kind of instruction.

Here να introduces the action that follows come.

So:

• έλα = come
• να φάμε = let’s eat / so we can eat

Very literally, it looks something like come that we eat, but natural English is come eat, come on, let’s eat, or come so we can eat.

After verbs like έρχομαι or imperative έλα, Greek very often uses να + verb to express the next action:

• έλα να δεις = come see
• έλα να μιλήσουμε = come talk

Because φάμε means we eat, so it includes both the speaker and the listener.

• να φάμε = let’s eat
• να φας = for you to eat / come eat addressed only to the other person

In this sentence, the speaker is inviting the other person to eat together, so φάμε is the right choice.

This is something Greek makes clearer than English, since English come eat can be ambiguous.

Because φάμε is the natural form for one complete eating event, such as having a meal.

• να φάμε = let’s eat
• να τρώμε = let’s be eating / let’s eat regularly / continuously

So φάμε sounds right because the speaker means sit down and have the meal now.

Also, this comes from the verb pair τρώω / φάω. Learners often notice that forms of eat can come from different stems in Modern Greek; that is normal.

Because the two nouns have different genders, and the article has to agree with the noun.

• το τηλεχειριστήριο is neuter
• η τηλεόραση is feminine, so as a direct object it becomes την τηλεόραση

Both phrases are direct objects in this sentence, but the article changes according to gender:

• το for neuter singular
• την for feminine singular in the accusative

So the difference is not because one is more important than the other; it is simply Greek gender and case agreement.

It separates the if-clause from the main part of the sentence.

Structure:

• Αν δεν βρεις το τηλεχειριστήριο = conditional clause
• κλείσε την τηλεόραση από το κουμπί και έλα να φάμε = main clause

So the comma works like English punctuation in sentences such as:

• If you can’t find the remote, turn off the TV from the button and come eat.

It helps the sentence read clearly and shows where the condition ends.