Σαπουνίζω καλά τα χέρια μου πριν αγγίξω την πληγή.

Not exactly.

• σαπουνίζω = to soap, to lather with soap
• πλένω = to wash

So Σαπουνίζω καλά τα χέρια μου means something like I soap my hands well / I lather my hands well. In natural English, you might simply translate the whole idea as I wash my hands well, but the Greek verb specifically highlights the use of soap.

This is very common in hygiene or medical contexts, where using soap matters.

καλά is an adverb, and here it modifies the verb σαπουνίζω.

So:

• σαπουνίζω = I soap
• καλά = well / thoroughly

Together: σαπουνίζω καλά = I soap well / I soap thoroughly

In this sentence, καλά tells us how the speaker soaps their hands. Greek adverbs are often quite flexible in position, but σαπουνίζω καλά τα χέρια μου sounds very natural.

Greek normally uses the definite article with body parts and with possessive expressions much more often than English does.

So:

• τα χέρια μου = my hands
  • literally: the hands of me

This is normal Greek structure. English says my hands, but Greek usually says the hands my.

The same pattern appears in many similar phrases:

• έπλυνα τα δόντια μου = I brushed my teeth
• πονάει το κεφάλι μου = my head hurts
• σήκωσα το χέρι μου = I raised my hand

μου here is the weak possessive form meaning my.

More technically, it is the genitive clitic pronoun of εγώ. In everyday learner terms, it is the little word Greek uses for my / to me / me, depending on context.

In this sentence:

• τα χέρια μου = my hands

So although μου can also mean to me in other sentences, here it clearly functions as a possessive: my.

Because Greek is using the aorist subjunctive after πριν to refer to a single action that will happen later.

• αγγίξω = aorist subjunctive of αγγίζω
• πριν αγγίξω = before I touch

Greek often chooses between present and aorist forms based on aspect, not just time.

Here, touching the wound is seen as:

• one complete act
• a single event

So αγγίξω is the natural choice.

If you used a present-type form, it would suggest a more ongoing or repeated action, which is not the idea here.

After πριν, Modern Greek often uses the subjunctive without να.

So:

• πριν αγγίξω = before I touch

This is completely normal. Learners often expect να because they learn that the subjunctive usually appears with it, but πριν is one of the common environments where Greek can use the subjunctive without να.

You may also encounter πριν να in some contexts, but πριν αγγίξω is very standard and natural.

Formally, αγγίξω is the aorist subjunctive, first person singular, from αγγίζω.

Breakdown:

• dictionary form: αγγίζω = I touch / I am touching
• aorist stem: αγγίξ-
• subjunctive ending here: -ω
• result: αγγίξω

Even though it looks similar to a present-tense form, in this sentence it is not a normal present indicative. It is a subjunctive form used after πριν.

Because πληγή is a feminine noun, and here it is the direct object of αγγίξω.

So:

• η πληγή = the wound
• την πληγή = the wound (accusative form)

Greek articles change with gender, number, and case.

Here:

• την = feminine singular accusative article
• πληγή = wound

Together, την πληγή means the wound.

Because the sentence is referring to a specific wound, not just any wound in general.

• την πληγή = the wound
• μια πληγή = a wound

So the Greek sentence means before I touch the wound, not before I touch a wound.

Greek uses the article in much the same way English does here, though in some situations Greek may use articles more often than English.

Yes, but it usually does not need to.

Greek often leaves out subject pronouns because the verb ending already shows the person:

• σαπουνίζω already means I soap
• αγγίξω also clearly matches I

So:

• Σαπουνίζω καλά τα χέρια μου πριν αγγίξω την πληγή. = normal, natural
• Εγώ σαπουνίζω καλά τα χέρια μου... = possible, but adds emphasis or contrast

For example, εγώ might be used if you want to stress I do this, perhaps in contrast with someone else.

The first verb, σαπουνίζω, is in the present indicative form, but in a sentence like this it can describe a habitual action or a general procedure:

• I soap my hands well before I touch the wound

This sounds like:

• something I usually do
• a routine
• an instruction-like statement

The second verb, αγγίξω, is subjunctive after πριν, and it points to the later action from the perspective of the first one.

So the sentence as a whole is not simply about present time in the English sense. It is more about a regular sequence: first I do this, then I do that.

Yes, that would also be grammatical and natural.

The difference is mainly nuance:

• σαπουνίζω καλά τα χέρια μου = I soap my hands well / I lather them well
• πλένω καλά τα χέρια μου = I wash my hands well

If the focus is specifically on using soap, σαπουνίζω is more precise. If the focus is simply on washing, πλένω works very well.

A very natural English rendering would be:

• I wash my hands well before touching the wound.
• I wash my hands thoroughly before I touch the wound.

Even though σαπουνίζω literally points to soaping, English often prefers wash my hands in normal usage. So the most natural translation may be slightly less literal than the Greek wording.