Me ducho después de entrenar.

Because ducharse is a reflexive verb in Spanish, meaning to shower oneself.

So:

• me ducho = I shower
• literally, I shower myself

In Spanish, many daily routine verbs are commonly reflexive, even when English does not use myself.

Examples:

• me levanto = I get up
• me visto = I get dressed
• me ducho = I shower

Ducho is the first-person singular present tense form of ducharse.

The verb pattern is:

• (yo) me ducho = I shower
• (tú) te duchas = you shower
• (él/ella) se ducha = he/she showers

So in this sentence, ducho tells you the subject is I.

Spanish often omits subject pronouns when the verb ending already makes the subject clear.

So both of these are correct:

• Me ducho después de entrenar.
• Yo me ducho después de entrenar.

The first is more natural in many everyday contexts. Spanish speakers usually only include yo for emphasis, contrast, or clarity.

For example:

• Yo me ducho después de entrenar, pero él no.
  = I shower after training, but he doesn’t.

Because after después de, Spanish uses a noun or an infinitive.

Here, entrenar is an infinitive meaning training / working out in a general sense.

So:

• después de entrenar = after training / after working out

This structure is very common:

• antes de salir = before leaving
• después de comer = after eating
• después de estudiar = after studying

Using entreno there would not work, because entreno is a conjugated verb form or a noun, and the structure needed here is después de + infinitive.

Here, entrenar means to train, to work out, or to exercise, depending on context.

So después de entrenar could mean:

• after training
• after working out
• after exercise

If someone is talking about the gym, sports practice, or fitness, this is a very natural verb to use.

Yes.

• después de entrenar = after training / after working out
• después del entrenamiento = after the training session / after practice

The difference is:

• después de entrenar sounds more like after doing the activity
• después del entrenamiento refers more directly to the training session itself

Both are correct, but the original sentence is very natural and common.

Because después is spelled with a written accent in standard Spanish: después.

You just need to learn it as part of the word’s spelling. The accent mark shows the correct stress pattern.

So always write:

• después

not:

• despues

Yes, depending on context. The Spanish present tense can cover several ideas that English separates.

Me ducho can mean:

• I shower
• I am showering

However, in this sentence, with después de entrenar, the most natural interpretation is:

• I shower after training
• or I take a shower after working out

If you specifically wanted to emphasize the action happening right now, Spanish often uses:

• Me estoy duchando = I am showering

It can correspond to both in English.

• Me ducho = I shower
• Me ducho = I take a shower

English uses both versions naturally, and Spanish does not need a separate structure here.

Yes, sometimes, but the original order is the most neutral and natural.

Standard:

• Me ducho después de entrenar.

You might also hear:

• Después de entrenar, me ducho.

This version gives a little more emphasis to after training.

Both are correct.

Yes. Tras can also mean after.

So:

• Me ducho después de entrenar.
• Me ducho tras entrenar.

Both are correct, but después de is usually more common and often easier for learners.

Yes, it sounds completely natural in Spain. Nothing in it is unusual or strongly regional.

A speaker in Spain would understand it as a normal everyday sentence. It also works in most other Spanish-speaking countries.

The only thing to keep in mind is that vocabulary for exercise can vary slightly by region, but entrenar is widely understood.