Každý člen týmu je důležitý.

A word-for-word breakdown is:

• každý = every, each
• člen = member
• týmu = of the team
• je = is
• důležitý = important

So the full sentence means Every team member is important.

A very literal English version would be Each member of the team is important.

Because každý means each/every individual one, so Czech treats it as singular.

That is why the sentence uses:

• singular noun: člen
• singular verb: je
• singular adjective: důležitý

This is very similar to English:

• Every member is important not
• Every members are important

So even though the idea includes many people, the grammar is singular because it focuses on members one by one.

Because člen normally takes the genitive to show what group someone belongs to.

So:

• člen týmu = member of the team
• člen rodiny = member of the family
• člen skupiny = member of the group

The base form is:

• tým = team

But after člen, it changes to the genitive singular:

• týmu = of the team

So člen týmu literally means member of the team.

They both agree with člen, which is:

• masculine
• animate
• singular
• nominative

In Czech, adjectives and adjective-like words must agree with the noun they describe.

Here:

• každý describes člen
• důležitý also refers to člen

So they both take the masculine singular nominative form:

• každý člen
• člen je důležitý

If the noun changed, those words would change too. For example:

• Každá členka týmu je důležitá. = Every female team member is important.

Člen is a grammatically masculine noun. In Czech, grammatical gender is part of the noun itself.

So:

• člen = member, masculine noun
• členka = female member, feminine noun

If you are speaking generally about team members, Czech often uses člen as the default generic form. But if you specifically want to refer to a woman, you would say:

• Každá členka týmu je důležitá.

Notice how everything changes to feminine:

• každá
• členka
• důležitá

Because the subject is grammatically singular: každý člen týmu.

Even though many people are meant overall, Czech sees the subject as each individual member, so the verb must be singular:

• Každý člen týmu je důležitý.

Compare with a plural subject:

• Členové týmu jsou důležití. = The team members are important.

So:

• každý člen → singular → je
• členové → plural → jsou

Normally, no. In standard Czech, the present tense of to be is usually expressed, so:

• Každý člen týmu je důležitý. = correct

Leaving out je would sound incomplete in normal standard Czech.

Czech sometimes omits forms of to be in headlines, notes, or very informal styles, but for ordinary full sentences like this, keep je.

Yes, Czech word order is more flexible than English, but the most neutral version is:

• Každý člen týmu je důležitý.

Other word orders are possible, but they change emphasis. For example:

• Důležitý je každý člen týmu.
  This stresses important or highlights that every single member matters.

• Každý člen je důležitý pro tým.
  This is a different structure and slightly different meaning: Every member is important for the team.

For a learner, the original sentence is the safest and most natural basic form.

A rough pronunciation guide for an English speaker:

• Každý ≈ KAZH-dee
• člen ≈ chlen
• týmu ≈ TEE-moo
• je ≈ yeh
• důležitý ≈ DOO-leh-zhi-tee

A few useful sound notes:

• č sounds like ch in chair
• ž sounds like the s in measure
• ý is a long ee sound
• j sounds like English y
• ů is a long oo

So a rough full version is:

KAZH-dee chlen TEE-moo yeh DOO-leh-zhi-tee

Both can be translated naturally as All team members are important, but they are not exactly the same.

Každý člen týmu je důležitý

• literally Every team member is important
• focuses on each individual separately
• singular grammar

Všichni členové týmu jsou důležití

• literally All the team members are important
• focuses on the whole group
• plural grammar

So the difference is similar to English every member vs all the members.

It can correspond to both, depending on context.

In this sentence, English would usually say:

• Every team member is important

But Each team member is important is also fine.

So každý often covers both each and every. The exact best translation depends on what sounds most natural in English.

You would use a plural noun, plural verb, and plural adjective:

• Členové týmu jsou důležití. = Team members are important.
• Všichni členové týmu jsou důležití. = All team members are important.

Compare the singular and plural versions:

• Každý člen týmu je důležitý.
• Všichni členové týmu jsou důležití.

The changes are:

• člen → členové
• je → jsou
• důležitý → důležití

You negate the verb je:

• Každý člen týmu není důležitý.

But be careful: this sentence can sound ambiguous, much like English Not every team member is important or Every team member is not important, depending on context.

If you want to say Not every team member is important, Czech often expresses that more clearly in other ways, for example:

• Ne každý člen týmu je důležitý.

So for learners:

• je = is
• není = is not
• ne každý = not every

That last pattern is often the clearest one.