Αν γυαλίζεις καλά το τραπέζι, βλέπεις αμέσως ποια χαρτιά είναι τσαλακωμένα.

Αν means if.

In this sentence, it introduces a condition: if this happens, then that happens. Greek uses this very naturally for general situations too, not only for one specific event.

So here the idea is something like:

• If / whenever you polish the table well, you immediately see which papers are wrinkled.

It is not necessarily talking about one single future event. It can describe a general result.

Because the sentence expresses a general truth or habitual result.

Greek often uses the present tense in sentences like this when the meaning is:

• whenever you do X, Y happens

So:

• γυαλίζεις = you polish / you are polishing
• βλέπεις = you see

In English, we also do this:

• If you heat water to 100°C, it boils.

That is the same kind of pattern.

This is mainly a question of aspect.

γυαλίζεις is the imperfective present form. It presents the action as ongoing, repeated, or general.

So in this sentence, Αν γυαλίζεις καλά το τραπέζι... sounds like:

• if/whenever you polish the table well
• a general or repeated situation

By contrast, γυαλίσεις is the perfective form used in subjunctive/future-type contexts. It would point more to a single completed act.

For example:

• Αν γυαλίσεις καλά το τραπέζι, θα δεις...
• If you polish the table well, you will see...

That version sounds more like one particular future occasion.

It can definitely mean a generic you, just like in English.

So βλέπεις here does not have to mean one specific person standing in front of the table. It can mean:

• you see
• one sees
• a person sees

Greek often uses the 2nd person singular this way, just as English does in sentences like:

• If you look closely, you notice the difference.

καλά is an adverb, and here it modifies γυαλίζεις.

So it means:

• well
• properly
• thoroughly

It tells you how the table is being polished.

So:

• γυαλίζεις καλά το τραπέζι = you polish the table well

Even though καλά looks like the neuter plural/neuter singular form related to καλός, here it functions as an adverb.

Yes. το τραπέζι is the direct object of γυαλίζεις.

You are polishing the table, so the table is what receives the action.

A useful thing to notice is that τραπέζι is a neuter noun, and in the singular, the nominative and accusative forms are the same:

• το τραπέζι = the table

So the form itself does not visibly change here. You understand that it is the object because of the verb and the sentence structure.

ποια comes from ποιος / ποια / ποιο, which means which (and sometimes what, depending on context).

Here it means:

• which

So:

• ποια χαρτιά = which papers

In this sentence, it introduces an embedded question:

• βλέπεις αμέσως ποια χαρτιά είναι τσαλακωμένα
• you immediately see which papers are wrinkled

So it is not a direct question like Which papers are wrinkled?
It is a statement containing that question inside it.

Because ποια is already functioning as the determiner.

In English, we say:

• which papers

not

• the which papers

Greek works the same way here:

• ποια χαρτιά

not normally

• τα ποια χαρτιά

So ποια already does the job that an article would normally help do.

Because it agrees with χαρτιά.

χαρτιά is:

• neuter
• plural

So the adjective must also be neuter plural:

• τσαλακωμένα = wrinkled / crumpled

This is standard Greek adjective agreement.

Compare:

• το χαρτί είναι τσαλακωμένο = the paper is wrinkled
• τα χαρτιά είναι τσαλακωμένα = the papers are wrinkled

In your sentence, τσαλακωμένα is a predicative adjective after είναι.

αμέσως means immediately / right away.

It modifies βλέπεις and tells you when or how quickly you see the result.

So:

• βλέπεις αμέσως = you immediately see

Its position is quite natural here, between the main verb and the embedded clause.

Yes. χαρτί can mean paper, but depending on context it can also mean card.

So χαρτιά might mean:

• papers
• sheets of paper
• cards

In this sentence, the exact meaning depends on the situation. If the context is a table with documents on it, papers is likely. If the context is a card game, it could mean cards.

The grammar stays the same either way.