Ek sit gemaklik by die venster en lees.

In Afrikaans, the simple present tense often covers both:

• a habitual meaning: I sit
• a right-now / ongoing meaning: I am sitting

So Ek sit gemaklik by die venster en lees can naturally mean I am sitting comfortably by the window and reading.

Afrikaans usually does not need a separate verb like am for this. The context tells you whether it is a general habit or something happening now.

Because the same subject, Ek, applies to both verbs:

• Ek sit ... en lees
• literally: I sit ... and read

This is normal in Afrikaans. If the subject stays the same, you do not need to repeat it before the second verb.

Compare:

• Ek sit en lees. = I sit and read / I am sitting and reading.
• Ek sit en ek lees. = possible, but usually unnecessary and less natural in a simple sentence like this.

Afrikaans verbs do not change form the way English verbs do.

In English you get forms like:

• sit / sits / sitting
• read / reads / reading

In Afrikaans, the verb usually stays the same:

• ek sit
• hy sit
• ons sit

and

• ek lees
• sy lees
• hulle lees

So in this sentence, sit and lees are just the normal present-tense forms.

Here it functions like an adverb, because it describes how the person is sitting.

• Ek sit gemaklik. = I sit comfortably / I am sitting comfortably.

Afrikaans often uses the same word form for both adjective and adverb, unlike English.

For example:

• ’n Gemaklike stoel = a comfortable chair
• Ek sit gemaklik = I sit comfortably

So the form changes in English, but often not in Afrikaans.

By die venster means by the window, and depending on context it can feel like:

• by
• near
• at

It usually means the person is positioned next to or close to the window.

So in this sentence, by die venster tells you where the speaker is sitting.

Because die means the.

• die venster = the window
• ’n venster = a window

If the English meaning shown to the learner is the window, then die is exactly what you would expect here.

Afrikaans uses die for the with singular and plural nouns:

• die venster = the window
• die vensters = the windows

Yes. That is one of the important things to notice.

Ek sit gemaklik by die venster en lees could mean:

• I am sitting comfortably by the window and reading
  or
• I sit comfortably by the window and read

In real life, context usually makes it clear. If someone is describing what they are doing now, it is naturally understood as an ongoing action.

Yes. This is very normal Afrikaans word order for a main clause:

• Ek = subject
• sit = first verb
• gemaklik = adverb
• by die venster = place phrase
• en lees = coordinated second verb

So the structure is basically:

Subject + verb + manner + place + and + second verb

Afrikaans is often quite similar to English in straightforward main clauses like this.

Yes, but the emphasis changes a little.

• Ek sit gemaklik by die venster en lees.
  Emphasis first on the fact that you are sitting comfortably, then also reading.

• Ek lees by die venster.
  Simpler; it focuses mainly on reading.

• Ek sit by die venster en lees gemaklik.
  Possible, but gemaklik sounds more naturally connected to sit than to lees in many contexts.

So the original sentence is a very natural way to say that you are comfortably seated by the window and reading.

Because en simply joins two verbs that share the same subject:

• sit
• lees

This is like English I sit comfortably by the window and read. In a short, simple coordination like this, no comma is needed.

So Ek sit gemaklik by die venster en lees is punctuated normally.