Todavía no nos ponemos de acuerdo sobre la fecha de la reunión.

Todavía no is a very common way to say still not or not yet.

In Spanish, no normally goes directly before the verb, and todavía adds the idea that the situation continues up to now:

• Todavía no nos ponemos de acuerdo...

A very common alternative is aún no:

• Aún no nos ponemos de acuerdo...

Both are natural here.

Spanish often leaves out subject pronouns because the verb ending already shows who the subject is.

Here, ponemos tells you the subject is we:

• pongo = I put / I get
• pones = you get
• pone = he/she gets
• ponemos = we get

So (nosotros) todavía no nos ponemos... is possible, but nosotros is usually omitted unless you want emphasis or contrast.

Because the verb here is the pronominal expression ponerse de acuerdo, which means to come to an agreement or to agree.

So the nos is part of the verb phrase:

• me pongo de acuerdo
• te pones de acuerdo
• se pone de acuerdo
• nos ponemos de acuerdo

If you remove nos, the meaning changes or the sentence becomes unnatural in this context.

Yes. Ponerse de acuerdo is an idiomatic expression.

Literally, it looks something like to put oneself in agreement, but you should learn it as a whole unit meaning:

• to agree
• to reach an agreement
• to settle something together

It is extremely common in everyday Spanish.

Because de acuerdo is a fixed phrase. It does not change to match the number of the people involved.

So even with we, it stays:

• nos ponemos de acuerdo

not

• nos ponemos de acuerdos

Think of de acuerdo here as part of one set expression, not as a noun you are pluralising.

Spanish often uses the present tense for a situation that is still true right now.

So Todavía no nos ponemos de acuerdo... presents the disagreement as an ongoing current situation.

In English, the most natural translation may use the present perfect, but Spanish does not have to match that tense exactly.

This sentence sounds like:

• the discussion is still unresolved
• up to now, agreement has not been reached

Yes, absolutely.

That version uses the present perfect:

• Todavía no nos hemos puesto de acuerdo...

In Spain, that is also very natural, especially when talking about something that remains unresolved up to the present.

The difference is subtle:

• Todavía no nos ponemos de acuerdo = focuses on the ongoing situation
• Todavía no nos hemos puesto de acuerdo = focuses a bit more on the fact that the agreement has not been reached yet

Both are correct and common.

Here sobre means about, regarding, or concerning.

So:

• sobre la fecha = about the date

Other possibilities exist, such as acerca de, but sobre is very natural and common.

In this sentence, sobre introduces the topic of disagreement: the date.

Spanish often uses de to connect two nouns where English might also use of or a possessive structure.

So:

• la fecha de la reunión = the date of the meeting

This is the normal Spanish way to express that relationship.

It is not usually restructured in a more English-like way. Spanish prefers the noun + de + noun pattern very often.

Reunión means meeting.

It has a written accent because the stress falls on the final syllable:

• reu-nión

The accent mark shows the pronunciation clearly.

The same kind of thing happens in todavía, where the accent helps mark the stressed syllable:

• to-da-ví-a

For learners, it is worth memorising the spelling together with the pronunciation.

Yes. In this context, todavía and aún usually mean the same thing:

• Todavía no nos ponemos de acuerdo...
• Aún no nos ponemos de acuerdo...

Both are correct and natural.

Very broadly:

• todavía is often felt as slightly more common in everyday speech
• aún can sound a little more literary or formal in some contexts

But here, either one works well.