Мы используем такие глаголы, когда люди делают что‑то друг с другом.

Here такие means such or these kinds of.

So:

• такие глаголы = such verbs / verbs like these

It points to a type or category of verbs that was probably mentioned earlier.

Because the sentence is talking about a whole group of verbs, not just one verb.

• глагол = verb
• глаголы = verbs

So Мы используем такие глаголы means We use such verbs.

Использовать is the dictionary form, meaning to use.

In the sentence, we need a finite verb: we use. That is:

• я использую = I use
• мы используем = we use

So используем is the 1st person plural present-tense form.

Делают is the correct 3rd person plural present-tense form of делать:

• он/она делает = he/she does
• они делают = they do

Since the subject is люди (people), which is plural, the verb must also be plural:

• люди делают = people do

There is no soft sign in this form: делают is correct.

Because this sentence expresses a general rule or habitual meaning, not one completed action.

• используем = we use in general
• делают = people do in general

Russian often uses the imperfective for repeated, habitual, or general actions.

A perfective form would sound wrong here because the sentence is not about one finished event.

Because когда люди делают что‑то друг с другом is a subordinate clause.

Russian normally puts a comma before subordinate clauses introduced by words like:

• когда = when
• если = if
• потому что = because
• что = that

So:

• Мы используем такие глаголы, когда...

is standard punctuation.

In this sentence, когда is best understood as when in a general sense, often close to whenever in English.

The idea is:

• We use such verbs when/whenever people do something with each other.

Because the whole sentence is describing a general rule, English when and whenever can both work depending on style.

Глаголы is in the accusative plural.

That is because it is the direct object of используем:

• Мы используем что? → такие глаголы

For inanimate masculine plural nouns, the accusative plural looks the same as the nominative plural:

• nominative: глаголы
• accusative: глаголы

So the form does not change here.

Because Russian indefinite pronouns like что‑то, кто‑то, где‑то are written with a hyphen.

Examples:

• что‑то = something
• кто‑то = someone
• где‑то = somewhere

So делают что‑то means do something.

Друг с другом means with each other or with one another.

It is a common Russian reciprocal expression used when two or more people do something mutually.

Examples:

• Они разговаривают друг с другом. = They talk to each other.
• Мы работаем друг с другом. = We work with each other.

In your sentence:

• люди делают что‑то друг с другом = people do something with each other

Because the preposition с in the meaning with normally requires the instrumental case.

The instrumental form of друг is:

• друг → другом

So:

• с другом = with a friend / with each other as part of this fixed expression

In друг с другом, the important point for a learner is that другом is instrumental because of с.

It is best learned as a set reciprocal expression meaning with each other.

Word-for-word translation is not very helpful here. Even though друг normally means friend, in this construction it does not literally mean friend. Together, друг с другом functions like each other / one another.

So you should understand the whole chunk:

• друг с другом = with each other

Yes, sometimes Russian can use между собой, and it can also mean something like among themselves or with each other, depending on context.

But there is a slight difference in feel:

• друг с другом strongly emphasizes direct reciprocity: with each other
• между собой can sound a bit broader: among themselves

In this sentence, друг с другом is very natural because the idea is specifically mutual action between people.

Russian often omits subjects when they are clear, but here люди is included because the sentence is making a general statement about people.

• когда люди делают что‑то друг с другом = when people do something with each other

This makes the statement clearer and more explicit.

Yes, Russian word order is flexible, but the original order is neutral and natural.

Original:

• Мы используем такие глаголы, когда люди делают что‑то друг с другом.

Possible variations exist, but they may sound more marked or emphasize different parts of the sentence.

For a learner, the given order is the safest and most standard one to use.

The key point is the idea of reciprocal action: actions that people do to/with each other.

Russian often expresses this with:

• друг друга
• друг другу
• друг с другом
• other similar forms depending on the verb and preposition

So this sentence is explaining when a certain kind of verb is used: when the action is mutual between people.