Ο γιατρός μου είπε να παίρνω το χάπι δύο φορές τη μέρα.

Ο is the masculine singular definite article, meaning the.

So:

• ο γιατρός = the doctor

Greek uses the definite article more often than English does, especially with professions, titles, and people in ordinary reference. In this sentence, ο γιατρός μου literally means the doctor of mine, i.e. my doctor.

Μου here means my.

Greek often expresses possession with a weak pronoun after the noun:

• ο γιατρός μου = my doctor
• literally: the doctor my

The same little word μου can also mean to me or me, depending on the sentence. In this sentence, though, with ο γιατρός, it shows possession: my doctor.

In Modern Greek, possessive weak pronouns like μου, σου, του, της, μας usually come after the noun:

• το βιβλίο μου = my book
• η φίλη σου = your friend
• ο γιατρός μου = my doctor

So this is the normal Greek pattern, even though it feels reversed compared with English.

Είπε is the past tense form of λέω (to say / tell).

Here it means:

• he/she told / said

So:

• Ο γιατρός μου είπε... = My doctor told me...

Greek often uses this form, the aorist, for a single completed past action.

Good question. Greek λέω / είπε can cover both say and tell, depending on context.

So:

• Ο γιατρός μου είπε να παίρνω το χάπι...

is understood as:

• My doctor told me to take the pill...

Even though there is no separate me written here, Greek often leaves it understood when the meaning is obvious from context.

If you wanted to make it explicit, you could say:

• Ο γιατρός μου μού είπε να παίρνω το χάπι...

where μού means to me.

Because Modern Greek does not normally use an infinitive like English to take.

Instead, Greek usually uses να + verb:

• να παίρνω = roughly to be taking / that I take

So:

• είπε να παίρνω literally means something like said that I should take / told me to take

A very useful thing to remember is:

• English often uses to + verb
• Greek often uses να + verb

Not exactly. It is better understood as να + verb form, often called the subjunctive in learner grammar.

What matters most here is the aspect of the verb:

• να παίρνω = ongoing, repeated, habitual action
• να πάρω = one complete action

So in this sentence, να παίρνω fits because taking a pill twice a day is a repeated routine, not a one-time action.

Because the sentence talks about a repeated habit:

• twice a day

Greek makes an important distinction between:

• imperfective aspect: repeated, ongoing, habitual action
  
  • να παίρνω
• perfective aspect: one complete action
  
  • να πάρω

So:

• Ο γιατρός μου είπε να παίρνω το χάπι δύο φορές τη μέρα.
  = My doctor told me to take the pill twice a day.

But:

• Ο γιατρός μου είπε να πάρω το χάπι.
  would sound more like My doctor told me to take the pill as a single act.

This aspect difference is one of the most important things in Greek verbs.

Παίρνω has several meanings, and one very common one is take.

Depending on context, it can mean things like:

• take
• get
• receive
• pick up

With medicine, παίρνω is the normal verb for take:

• παίρνω το χάπι = take the pill
• παίρνω φάρμακα = take medicine

So this is very natural Greek.

Το is the neuter singular definite article:

• το χάπι = the pill

In Greek, articles are used very often, including where English might or might not use one. In this sentence, το χάπι refers to the specific pill/medication already known in the situation, so the pill is natural.

Χάπι is neuter.

That matters because the article and some other words must match its gender:

• το χάπι = the pill

If you change the noun, the article may change too:

• το χάπι = neuter
• το φάρμακο = neuter
• η ασπιρίνη = feminine

Gender is something you need to learn together with the noun.

This is the normal way to say twice a day.

Breakdown:

• δύο = two
• φορές = times
• τη μέρα = per day / a day

So literally it is something like:

• two times the day

But idiomatically it means:

• twice a day

This kind of expression is very common in Greek.

Τη is just a shorter spoken-and-written form of την before a consonant.

So these are both possible:

• τη μέρα
• την μέρα

The shorter form is extremely common in everyday Greek.

Both exist, but μέρα is the everyday spoken form, while ημέρα is more formal or careful.

So:

• τη μέρα = everyday, natural
• την ημέρα = more formal

In ordinary conversation, δύο φορές τη μέρα is exactly what you would expect to hear.

Yes, absolutely.

These mean the same thing:

• δύο φορές τη μέρα
• δύο φορές την ημέρα

The first is more everyday and conversational.
The second is more formal, and you might see it in medical instructions or writing.

Because Greek is literally saying two times:

• δύο φορές = two times

English has the special word twice, but Greek normally uses the regular counting expression:

• μία φορά = once / one time
• δύο φορές = twice / two times
• τρεις φορές = three times

So φορές is plural because the count is more than one.

Not completely. Greek word order is more flexible than English word order.

The neutral order here is:

• Ο γιατρός μου είπε να παίρνω το χάπι δύο φορές τη μέρα.

But other orders are possible for emphasis, for example:

• Μου είπε ο γιατρός να παίρνω το χάπι δύο φορές τη μέρα.
• Το χάπι να παίρνω δύο φορές τη μέρα, μου είπε ο γιατρός.

These versions can sound more marked or emphatic. The original sentence is the most straightforward and neutral.

Normally, no. In standard Greek, you would usually keep the article:

• ο γιατρός μου

Greek uses the definite article with nouns much more regularly than English does. Leaving it out here would sound unnatural.

Not necessarily. Γιατρός is the standard word for doctor, and it can be used for both male and female doctors, depending on the article and context:

• ο γιατρός = the male doctor
• η γιατρός = the female doctor

So the noun itself often stays the same, while the article shows the gender.

Probably this one:

• είπε να παίρνω

This shows a very common Greek pattern:

1. a past verb such as είπε
2. followed by να
3. followed by a verb whose aspect matters a lot

Here, να παίρνω is chosen because the action is repeated and habitual. So this sentence is a great example of how Greek expresses told me to do something regularly.

Then Greek would usually switch to the perfective form:

• Ο γιατρός μου είπε να πάρω το χάπι.

That means:

• My doctor told me to take the pill.

This sounds like one complete action, not a repeated schedule.

By contrast:

• να παίρνω το χάπι δύο φορές τη μέρα
  means taking it regularly as an ongoing instruction.

Yes, very natural.

A Greek speaker would readily use:

• Ο γιατρός μου είπε να παίρνω το χάπι δύο φορές τη μέρα.

It sounds like normal spoken Greek and is exactly the kind of thing you might hear in a real medical context.