Φουσκώνω τη σαμπρέλα με την τρόμπα από τη βαλβίδα.

Φουσκώνω is the 1st person singular present form of the verb φουσκώνω, which means to inflate, to blow up, to pump up.

So here it means:

• I inflate
• or I am inflating

The exact English choice depends on context.

Greek often leaves out subject pronouns when they are clear from the verb ending.

The ending -ω in φουσκώνω already tells you the subject is I.

So:

• Φουσκώνω = I inflate / I am inflating

You could say Εγώ φουσκώνω, but that adds emphasis, like:

• I’m the one inflating it
• I inflate it, not someone else

All three are in the accusative singular.

Why?

• τη σαμπρέλα is the direct object of φουσκώνω
• την τρόμπα comes after με
• τη βαλβίδα comes after από

In Modern Greek, prepositions like με and από normally take the accusative.

So:

• η σαμπρέλα → τη σαμπρέλα
• η τρόμπα → την τρόμπα
• η βαλβίδα → τη βαλβίδα

All three nouns are feminine singular.

This is about the final -ν of the feminine accusative article.

The full form is την, but in everyday standard Greek the final -ν is often dropped before certain consonants.

So here:

• τη σαμπρέλα because σαμπρέλα starts with σ
• την τρόμπα because τρόμπα starts with τ, and before sounds like τ the -ν is normally kept
• τη βαλβίδα because βαλβίδα starts with β, so the -ν is commonly dropped

This is why you see:

• τη σαμπρέλα
• την τρόμπα
• τη βαλβίδα

Here με means with / by means of / using.

So με την τρόμπα means:

• with the pump
• using the pump

This is an instrumental use of με: it tells you what tool is being used.

Compare:

• γράφω με μολύβι = I write with a pencil
• κόβω με το μαχαίρι = I cut with the knife
• φουσκώνω με την τρόμπα = I inflate with the pump

Yes, από very often means from, but in sentences like this it can also refer to the point/opening through which something happens.

So από τη βαλβίδα is naturally understood as something like:

• through the valve
• via the valve
• from the valve opening

In smoother English, through the valve is often the best translation, even though the Greek word is από.

So the idea is not that the inner tube comes from the valve, but that the air is being pumped in through that point.

Σαμπρέλα means inner tube, especially the rubber tube inside a bicycle tire, car tire, etc.

It is a very common everyday word in Greek.

A learner may notice that it does not look very Greek in origin. That is because it is a loanword, ultimately from French.

So in this sentence:

• τη σαμπρέλα = the inner tube

Greek uses the definite article much more often than English does.

In a sentence like this, the objects involved are treated as specific and concrete:

• the inner tube
• the pump
• the valve

Even where English might sometimes say with a pump in a general way, Greek often prefers με την τρόμπα if the pump is understood from the situation.

So the articles sound very natural here.

Yes.

The Greek present tense often covers both:

• a simple present meaning: I inflate
• a present progressive meaning: I am inflating

So without more context, Φουσκώνω τη σαμπρέλα... could mean either:

• I inflate the inner tube...
• I’m inflating the inner tube...

Context tells you which is intended.

No, Greek word order is fairly flexible.

The given order is natural and neutral:

• Φουσκώνω τη σαμπρέλα με την τρόμπα από τη βαλβίδα.

But Greek can move parts around for emphasis or style, for example:

• Με την τρόμπα φουσκώνω τη σαμπρέλα από τη βαλβίδα.
• Τη σαμπρέλα τη φουσκώνω με την τρόμπα από τη βαλβίδα.

The original sentence is a straightforward, unmarked way to say it:

• verb
• object
• tool phrase
• valve phrase

Yes.

• η τρόμπα = pump
• η βαλβίδα = valve

Both are ordinary, common vocabulary in practical contexts like bicycles, tires, mechanics, and household repair.

So this whole sentence sounds like normal everyday Greek, not especially formal or technical.