Для меня метро — самый удобный транспорт в городе.

Для меня literally means for me, but in this kind of sentence it usually means to me, for me personally, or in my opinion / from my point of view.

So:

• Для меня метро — самый удобный транспорт в городе.
• = For me, the metro is the most convenient transport in the city.

It marks this as a personal judgment, not a universal fact.

Also, меня is in the genitive case because the preposition для always takes the genitive.

Examples:

• для меня — for me
• для него — for him
• для нас — for us

In Russian, the verb to be in the present tense is usually not stated.

So where English says:

• The metro is the most convenient transport...

Russian often says:

• Метро — самый удобный транспорт...

The dash helps show the relationship between the two parts of the sentence, especially in a sentence like X = Y.

You can think of it as:

• Метро — самый удобный транспорт
• = The metro [is] the most convenient transport

This is very common in written Russian.

Метро is one of those Russian nouns that are usually indeclinable, meaning they do not change form across cases.

So you get:

• метро
• в метро
• из метро
• к метро

The form stays the same.

This is common with some borrowed words in Russian, especially words ending in -о, -е, -и, -у, etc.

Even though it does not change form, it still has grammatical properties. Метро is normally treated as neuter singular.

This is a very important point.

The adjective самый удобный agrees not with метро, but with транспорт.

The structure is:

• метро — самый удобный транспорт

Here, транспорт is the noun being described by самый удобный.

Since транспорт is masculine singular, the adjective must also be masculine singular:

• самый
• удобный
• транспорт

If the noun were neuter, then you would get a neuter form:

• Это самое удобное средство передвижения.

But in your sentence, the key noun in that noun phrase is транспорт, so masculine is correct.

Самый удобный means the most convenient.

A very common way to form the superlative in Russian is:

• самый + adjective

So:

• удобный — convenient
• самый удобный — the most convenient

Other examples:

• интересный — interesting

• самый интересный — the most interesting

• быстрый — fast
• самый быстрый — the fastest

Russian also has other ways to express comparison and superlatives, but самый + adjective is one of the most common and straightforward.

In Russian, транспорт can be used as a general singular noun meaning transport, transportation, or means of transport in a broad sense.

So:

• самый удобный транспорт
• literally: the most convenient transport
• naturally: the most convenient means of transportation

This is normal Russian usage.

If you want to be more explicit, Russian can also say:

• самый удобный вид транспорта
• the most convenient type of transport

But your original sentence is perfectly natural.

В городе means in the city.

The noun город is in the prepositional case after в when talking about location.

• город — city
• в городе — in the city

This use of в + prepositional is very common for location:

• в доме — in the house
• в школе — at school / in the school
• в Москве — in Moscow

So in your sentence:

• в городе = in the city

Russian has no articles like a, an, or the.

So Russian simply says:

• метро
• город

Whether English translates them as the metro, a metro, the city, or a city depends on context.

In this sentence, English naturally uses the metro and the city, but Russian does not need separate words for that.

Learners often want to look for a Russian equivalent of the, but there usually isn’t one.

Yes, absolutely.

Russian word order is more flexible than English word order. Both of these are natural:

• Для меня метро — самый удобный транспорт в городе.
• Метро для меня — самый удобный транспорт в городе.

The difference is mainly in focus and emphasis.

• Для меня first: emphasizes for me personally
• Метро first: emphasizes the metro

So the original version highlights the speaker’s personal opinion right away.

Yes, often you can, but the nuance is slightly different.

• Для меня = for me / as far as I’m concerned / personally for me
• По-моему = in my opinion / I think

So:

• Для меня метро — самый удобный транспорт в городе.
• По-моему, метро — самый удобный транспорт в городе.

Both are natural.

A simple way to feel the difference:

• для меня sounds a bit more personal
• по-моему sounds a bit more like an opinion statement

In many everyday situations, either one works.

Good question. Russian can use the instrumental in some predicate constructions, especially with forms of быть, стать, являться, etc.

But in a simple present-tense identifying/equational sentence like this, the nominative is standard and natural:

• Метро — самый удобный транспорт в городе.

That is the normal choice here.

You may see instrumental in other structures, for example:

• Метро является самым удобным транспортом в городе.
• The metro is the most convenient transport in the city.

Here является often goes with instrumental:

• самым удобным транспортом

So the case depends partly on the structure used.

In many contexts, метро is translated as metro, subway, or underground, depending on the variety of English.

Possible translations:

• American English: subway
• British English: underground or metro
• General/international English: metro

So in this sentence, the exact English word may vary, but the Russian word метро is perfectly standard.

The sentence literally says the most convenient transport in the city, so it is phrased generally. But because the subject is метро, the intended meaning is naturally about means of getting around in the city.

In real life, a Russian speaker would usually understand this as comparing the metro with other city transport options, such as:

• автобус — bus
• трамвай — tram
• такси — taxi
• машина — car

So even though public is not explicitly stated, the context often makes that clear.

Yes. That is a very natural English translation.

The Russian uses транспорт, but in idiomatic English you might choose:

• the most convenient transport
• the most convenient means of transport
• the most convenient way to get around the city

All of these can work, depending on how natural you want the English to sound.

So this is a good example of how a sentence can be grammatically straightforward in Russian but need a slightly freer translation in English.