Летом я ношу кеды почти каждый день.

In Russian, some time expressions are used without a preposition, and летом is one of them.

• лето = summer
• летом = in summer / during the summer

This is the instrumental case, which is often used in set time expressions like:

• зимой = in winter
• весной = in spring
• осенью = in autumn
• утром = in the morning
• днём = during the day
• вечером = in the evening

So Летом here means In the summer or During summer.

You could also say в лето in some very specific contexts, but not for the ordinary meaning in summer. For this sentence, летом is the natural choice.

Yes, very often you can.

Russian verb endings usually show who the subject is, and ношу already tells us the subject is I.

So both are possible:

• Летом я ношу кеды почти каждый день.
• Летом ношу кеды почти каждый день.

The version with я is still completely natural. It may sound a little more explicit or contrastive, depending on context.

For example:

• А зимой я ношу ботинки.
  = And in winter, I wear boots.

So я is not required, but it is not wrong at all.

This is a very common question, because English often uses wear for several different ideas, while Russian separates them more clearly.

• носить / носить = to wear regularly, to have on, to wear as a habit
• надевать / надеть = to put on

So:

• Я ношу кеды почти каждый день.
  = I wear sneakers almost every day.
  This talks about a habitual action.

But:

• Я надеваю кеды.
  = I am putting on sneakers.

A useful shortcut:

• носить = wear
• надевать = put on

In this sentence, the speaker is talking about a repeated habit in summer, so ношу is the correct choice.

Ношу is the 1st person singular form of носить.

• носить has two important meanings depending on context:
  1. to wear
  2. to carry regularly / repeatedly

So:

• Я ношу кеды. = I wear sneakers.
• Я ношу сумку. = I carry a bag.

You may also know нести / несу, which means to carry in a more one-direction, single-instance sense:

• Я несу сумку домой. = I am carrying the bag home.

But нести is not used for wearing clothes/shoes. For clothing, Russian uses носить.

Shoes like sneakers are normally referred to in the plural, just like in English:

• кеды = sneakers
• ботинки = boots/shoes
• туфли = shoes
• сандалии = sandals

That is because they come as a pair.

There is technically a singular form кед, but in normal speech it is not common when talking about footwear in general. Usually you say кеды.

So:

• Я ношу кеды. = I wear sneakers.

This is perfectly natural.

They are similar, but not always exactly the same.

• кеды usually means simple canvas-style sneakers, often casual or classic-looking
• кроссовки usually means athletic trainers / running shoes / sportier sneakers

In everyday conversation, the distinction may blur, and people may sometimes use them loosely. But if you want the general idea:

• кеды = sneakers, especially casual canvas ones
• кроссовки = trainers / athletic sneakers

So the sentence gives the image of someone wearing casual sneakers in summer.

Because каждый день is an accusative expression meaning every day.

Here, каждый agrees with день:

• день = day
• каждый день = every day

This is a fixed, very common time expression. Compare:

• каждый день = every day
• каждую неделю = every week
• каждый год = every year
• каждое утро = every morning

So in the sentence:

• почти каждый день = almost every day

That whole phrase functions as an adverbial expression of frequency.

Because почти means almost, and here it modifies the whole phrase каждый день.

So:

• почти каждый день = almost every day

This is the normal word order.

You can think of it as one chunk:

• почти
  • каждый день

Similar examples:

• почти всегда = almost always
• почти никогда = almost never
• почти все = almost all
• почти каждое утро = almost every morning

The word order is natural, but Russian word order is fairly flexible.

The neutral version is:

• Летом я ношу кеды почти каждый день.

But you could also hear:

• Я летом ношу кеды почти каждый день.
• Кеды я ношу летом почти каждый день.
• Почти каждый день летом я ношу кеды.

These versions shift emphasis slightly:

• starting with Летом highlights the time
• starting with Кеды emphasizes what is worn
• starting with Почти каждый день emphasizes frequency

So the original sentence is natural and neutral, but not the only possible order.

No, not in this sentence.

For the meaning in summer / during the summer, the normal form is:

• летом

Not:

• в лето
• в летом

You can use в + accusative/prepositional with many time expressions, for example:

• в понедельник = on Monday
• в июле = in July
• в этом году = this year / in this year

But the seasons often use special forms:

• зимой
• весной
• летом
• осенью

So for this sentence, летом is the correct standard choice.

The stress is:

• Ле́том я ношу́ ке́ды почти́ ка́ждый день.

A rough pronunciation guide:

• Ле́том = LYE-tam
• я = ya
• ношу́ = na-SHOO
• ке́ды = KYE-dy
• почти́ = pach-TEE
• ка́ждый = KAZH-dy
• день = dyen’

A few tips:

• я is pronounced like ya
• день has a soft д and н, so it sounds roughly like dyen’
• the stress in ношу́ is on the last syllable

Not necessarily.

Because ношу here is used with летом and почти каждый день, the sentence describes a habit or usual practice, not just what is happening at this moment.

So it means something like:

• In summer, I wear sneakers almost every day.

It does not specifically mean:

• I am wearing sneakers right now.

If you wanted to focus on what someone has on right now, Russian often relies on context, or uses wording like:

• Я сейчас в кедах. = I’m in sneakers right now.
• На мне кеды. = I have sneakers on.