La professoressa dice che, dopo il punto, ci vuole sempre la maiuscola e mai la minuscola.

Professoressa is the feminine form of professore. It means female professor or, in many contexts, simply female teacher.

The article la is there because professoressa is a singular feminine noun.

So:

• il professore = the male professor/teacher
• la professoressa = the female professor/teacher

In Italian, job titles often change form depending on gender.

Yes. Che here means that.

So:

• dice = says
• dice che... = says that...

Italian often uses che after verbs like dire, pensare, credere, just as English uses that:

• Penso che... = I think that...
• Lei dice che... = She says that...

In English, that is often optional. In Italian, che is normally required in this structure.

The phrase dopo il punto is inserted as extra information in the middle of the sentence, so the commas mark it off as a parenthetical element.

The basic structure is:

• La professoressa dice che ci vuole sempre la maiuscola...

Then dopo il punto is added in the middle:

• La professoressa dice che, dopo il punto, ci vuole sempre la maiuscola...

Without commas, the sentence would still be understandable:

• La professoressa dice che dopo il punto ci vuole sempre la maiuscola...

With commas, it sounds a little more paused and explicitly set off.

Here il punto means the period or full stop, not point in the general sense.

Italian punto can mean several things depending on context:

• point
• dot
• period / full stop

In grammar and punctuation, il punto usually means the full stop / period.

So:

• dopo il punto = after the period / after the full stop

Because dopo can work as a preposition by itself and directly take a noun phrase.

So you say:

• dopo il pranzo = after lunch
• dopo la lezione = after the lesson
• dopo il punto = after the period

You do not normally say dopo al punto here.

English speakers often expect an extra preposition, but Italian does not need one in this case.

Ci vuole is an idiomatic expression from volerci, which means something like to be needed, to be required, or to take.

In this sentence:

• ci vuole sempre la maiuscola = a capital letter is always needed
• more naturally in English: you always need a capital letter

So ci vuole does not literally mean there wants. It is a fixed expression.

Some common examples:

• Ci vuole pazienza. = Patience is needed. / You need patience.
• Ci vuole tempo. = It takes time.
• Ci vuole la maiuscola. = A capital letter is required.

Because the thing being required is singular:

• la maiuscola = singular
• la minuscola = singular

With volerci, the verb agrees with the thing needed:

• Ci vuole una penna. = A pen is needed.
• Ci vogliono due penne. = Two pens are needed.

Here the sentence is talking about la maiuscola as a singular noun, so vuole is correct.

The second part:

• e mai la minuscola leaves the verb unstated, but the idea is still singular.

They literally mean:

• la maiuscola = the uppercase / the capital letter
• la minuscola = the lowercase letter

In full form, these are really short for:

• la lettera maiuscola
• la lettera minuscola

Italian often uses the adjective as a noun when the noun is understood.

So in this sentence:

• ci vuole sempre la maiuscola = you always need a capital letter
• mai la minuscola = never a lowercase letter

Because here they are being used as nouns, not just adjectives.

Compare:

• una lettera maiuscola = an uppercase letter
• la maiuscola = the uppercase one / the capital letter

The article makes them function like nouns:

• la maiuscola
• la minuscola

This is very common in Italian. An adjective can become a noun when the context makes the meaning clear.

This is because the second part is elliptical: the verb is omitted because it is understood from the first part.

Full version:

• La professoressa dice che, dopo il punto, ci vuole sempre la maiuscola e non ci vuole mai la minuscola.

But Italian often shortens repeated structures:

• ...ci vuole sempre la maiuscola e mai la minuscola.

So the meaning is still never lowercase, even though non is not repeated in the shortened version.

In a full clause with the verb expressed, you would normally expect:

• non ... mai

Yes, absolutely.

You could say:

• Dopo il punto ci vuole sempre una lettera maiuscola.

That is a fuller, more explicit version.

But la maiuscola is very natural when the context is already clear and people are talking about writing or spelling rules.

So:

• la maiuscola = shorter, more idiomatic in context
• la lettera maiuscola = more explicit

Both are correct.

Not especially; it is in a very natural position.

• ci vuole sempre la maiuscola = a capital letter is always needed

Here sempre modifies the idea of always applying this rule.

Italian adverbs like sempre, mai, spesso, già are fairly flexible in position, but some placements sound more natural than others. In this sentence, sempre before la maiuscola sounds smooth and standard.

So this is a normal pattern:

• ci vuole sempre X
• si usa sempre X

Not necessarily.

In Italian, professore/professoressa can refer not only to a university professor but also to a school teacher, especially in middle school or high school.

So depending on context, la professoressa could mean:

• the professor
• the teacher

That is broader than modern English professor, which usually sounds more specifically university-level.