Domani mattina devo prendere un treno con coincidenza a Bologna.

In Italian, time expressions like domani and domani mattina usually do not need a preposition.

• domani = tomorrow
• domani mattina = tomorrow morning

So Italian simply says:

• Ci vediamo domani. = See you tomorrow.
• Parto domani mattina. = I’m leaving tomorrow morning.

English often uses tomorrow morning with no preposition too, so this part matches English fairly well.

Yes. You may also see domattina.

So these are both possible:

• Domani mattina devo prendere un treno...
• Domattina devo prendere un treno...

They mean the same thing.
Domani mattina is very common and transparent for learners; domattina is just a fused form used in everyday Italian.

Devo prendere is:

• devo = I must / I have to
• prendere = to take

So devo prendere means I have to take or I must catch/take.

This is a very common structure in Italian:

• dovere + infinitive

Examples:

• Devo andare = I have to go
• Devo studiare = I have to study
• Devo partire presto = I have to leave early

In this sentence, it expresses obligation or necessity: the speaker needs to take that train.

Yes. In Italian, prendere is the normal verb for means of transport in many contexts:

• prendere il treno = to take the train
• prendere l’autobus = to take the bus
• prendere un taxi = to take a taxi

Depending on context, English might translate this as take, catch, or sometimes get.

So devo prendere un treno could be understood as:

• I have to take a train
• I have to catch a train

Un treno means a train, so it is indefinite: the sentence does not identify a specific train by name or as already known in the conversation.

• devo prendere un treno = I have to take a train
• devo prendere il treno = I have to take the train

Use il treno if the train is already known or specific, for example:

• Devo prendere il treno delle 8:10. = I have to take the 8:10 train.

So un treno is natural if the focus is just on the fact that it is a train journey, not which exact train.

Coincidenza in travel language means a connection, meaning you do not travel all the way on one direct train; you have to change trains.

So:

• un treno con coincidenza a Bologna

means something like:

• a train journey with a connection in Bologna
• a train where I have to change in Bologna

A very natural English interpretation is with a change in Bologna.

In travel-related expressions, Italian often leaves out the article in compact descriptions like this.

So treno con coincidenza a Bologna sounds like a standard description:
a train with a connection in Bologna.

You may also hear:

• con una coincidenza a Bologna

That is grammatically possible, but con coincidenza can sound more concise, almost like timetable or travel-language phrasing.

A similar idea in English would be the difference between:

• a connecting train
• a train with a connection

Both work, but one may sound more streamlined depending on context.

With cities, Italian normally uses a:

• a Roma
• a Milano
• a Bologna

So:

• a Bologna = in Bologna / at Bologna

English uses in for cities, but Italian usually uses a.

By contrast, in is often used with countries and larger regions:

• in Italia
• in Francia
• in Toscana

So coincidenza a Bologna is exactly what you would expect.

It goes with coincidenza.

So the meaning is:

• a train with a connection in Bologna

not:

• a train to Bologna

The phrase tells you where the connection happens.
If the destination were Bologna, the wording would usually make that clearer in another way.

Yes. That is a very natural English rendering.

Even though the Italian literally contains prendere = take, in context English often prefers:

• catch a train
• take a train

And con coincidenza a Bologna can be translated naturally as:

• with a connection in Bologna
• with a change in Bologna

So several good English versions are possible.

Italian often puts time expressions at the beginning for context:

• Domani mattina devo prendere un treno...

This is very natural and helps set the scene immediately.

But other word orders are also possible, for example:

• Devo prendere un treno con coincidenza a Bologna domani mattina.

That still works, but the original order sounds smoother and more typical because it introduces the time first.

Yes. Devo is present tense, but Italian often uses the present to talk about the near future, especially when the time is already clear from context.

Here, domani mattina already tells us the action is in the future.

So Italian does not need a future tense form here. This is very common:

• Domani parto. = I’m leaving tomorrow.
• Stasera studio. = I’m studying tonight.
• Domani mattina devo prendere un treno. = Tomorrow morning I have to take a train.

Yes, that is another very common way to express the idea.

For example:

• Domani mattina devo prendere un treno e cambiare a Bologna. = Tomorrow morning I have to take a train and change in Bologna.

Or:

• Devo prendere un treno con cambio a Bologna. = I have to take a train with a change in Bologna.

Coincidenza is perfectly correct and common, but cambio is also very frequent in everyday travel language.

A useful breakdown is:

• Domani mattina = time expression
• devo = main conjugated verb
• prendere = infinitive linked to devo
• un treno = direct object
• con coincidenza a Bologna = phrase describing the train/journey

So the sentence is built like this:

[Time] + [I have to] + [take] + [a train] + [with a connection in Bologna]

That structure is very typical and worth remembering.