Bu ay iki kilo verdim.

By itself, vermek usually does mean to give. But Turkish has a very common expression:

kilo vermek = to lose weight

So in this sentence, iki kilo verdim literally looks like I gave two kilos, but the real meaning is I lost two kilos.

This is an idiomatic use, and it is completely standard Turkish.

verdim breaks down like this:

• ver- = verb stem, give
• -di = definite past tense
• -m = I

So:

ver-di-m = I gave / I lost
In this sentence, because of kilo vermek, it means I lost weight.

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

Here, the -m in verdim already tells you the subject is I.

So:

• Bu ay iki kilo verdim. = I lost two kilos this month.
• Ben bu ay iki kilo verdim. = also possible, but ben adds emphasis to I

Turkish does this very often, so omitted subjects are normal.

bu ay means this month.

In Turkish, many time expressions appear without a case ending:

• bugün = today
• yarın = tomorrow
• bu hafta = this week
• bu ay = this month
• geçen yıl = last year

So Bu ay iki kilo verdim is the normal way to say it.

Bu ayda usually sounds different in meaning, more like in this month too or during this particular month, often with contrast or emphasis. It is not the neutral everyday form here.

After numbers, Turkish nouns normally stay in the singular.

So you say:

• bir kilo
• iki kilo
• üç kitap
• beş gün

not:

• iki kilolar
• üç kitaplar
• beş günler

This is a basic Turkish rule: number + singular noun.

Because iki kilo is indefinite here, and in the expression kilo vermek, the noun normally stays unmarked.

Turkish usually uses the accusative ending -(y)i / -(y)ı / -(y)u / -(y)ü for a specific, definite direct object.

Here, iki kilo is just an amount, not a specific identified object. So:

• iki kilo verdim = correct
• iki kiloyu verdim = not natural for I lost two kilos

Also, since kilo vermek is a fixed expression meaning to lose weight, Turkish normally uses the bare form kilo.

No, Turkish word order is flexible, but this sentence has a very natural, neutral order:

Bu ay iki kilo verdim.

That is:

• time expression first: bu ay
• amount: iki kilo
• verb last: verdim

You could also hear things like:

• İki kilo verdim bu ay.

That puts extra focus on this month.
But the original sentence is a very normal default structure.

Good question. Turkish does not have a separate tense that works exactly like the English present perfect.

The suffix -di in verdim is the regular past tense, but in context it can match either:

• I lost two kilos this month or
• I’ve lost two kilos this month

So even though this month is still ongoing, Turkish can still naturally use verdim.

This is a common difference between English and Turkish: Turkish often uses the simple past where English prefers the present perfect.

Yes. kilo kaybetmek also means to lose weight.

So both are possible:

• Bu ay iki kilo verdim.
• Bu ay iki kilo kaybettim.

But kilo vermek is especially common in everyday Turkish when talking about dieting or body weight.

Very roughly:

• kilo vermek = the usual everyday expression
• kilo kaybetmek = also correct, sometimes a bit more literal or direct

Yes, but kilo is much more common in everyday speech.

• iki kilo = normal, natural
• iki kilogram = correct, but more formal or technical

In ordinary conversation, Turkish speakers almost always say kilo.

Out of context, verdim by itself could mean I gave. But with iki kilo, Turkish speakers will normally understand I lost two kilos, because kilo vermek is such a common expression.

So in real life, this sentence is understood as talking about body weight, not physically giving kilos to someone.