What is the Most Difficult Grammar Rule in Italian?

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Published Feb 18, 2021
Updated Jun 18, 2025
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Key Takeaways

  • The gender of words is often the most challenging rule for English speakers, as nouns in Italian are either feminine or masculine.
  • Italian nouns typically follow a pattern: -a for feminine and -o for masculine, but there are exceptions.
  • The congiuntivo (subjunctive) is considered the most difficult grammar rule for Italians, used for expressing hopes and doubts.
  • To use the congiuntivo, it is often preceded by the word che, indicating a dependent clause.
  • Learning these grammar rules requires practice; resources like grammar lessons can be very helpful.

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Italian grammar video lesson

Main Article

Most Difficult Rule in Italian

When learning Italian, many learners find certain grammar rules especially challenging. As a linguist and Italian teacher, I’ve noticed that around 80% of my students identify congiuntivo as the hardest rule to master.

Unlike the indicative mood, which states facts or certain information, the subjunctive mood is a verb mood that is used to express doubt, uncertainty, desire, or hypothetical scenarios.

This abstract nature makes it difficult to grasp, particularly for native English speakers who rarely encounter such a structure in their own language.

It really does requires a mental shift to use and while English speakers use it subtly, Italian relies heavily on it to convey nuance and emotion in everyday conversation.

However I will confess you something: even Italians get it wrong sometimes!

Why the Subjunctive is So Tough

Unfamiliar Territory for English Speakers

In English, the use of the subjunctive mood is limited. You can encounter it in phrases like “I suggest that he go” or “If I were you”.

However, although these verbs are subjunctive verbs in all and all, they are just like other verb conjugations, which makes learning them quite easy.

For this very reason, many native English speakers don’t consciously use or recognize it. In Italian, on the other hand, we have specific verb conjugation patterns that need to be learned for us to properly use it.

For example, have a look at this common sentence:

Penso che tu abbia ragione.

I think you are right.

Here, abbia is the present subjunctive of avere (to have). If you used the present indicative hai, the sentence would sound odd to an Italian ear, and to be honest, also slightly ungrammatical.

Complex Conjugation Patterns

As I mentioned before, the main reason why learning the Italian subjunctive is hard is because it has its own conjugation patterns. This means that you have to learn a new verb paradigm, which is specific of this verb tense.

Learners need to remember specific endings for regular and irregular verbs across its four verb tenses: present, imperfect, past, and past perfect. This can feel overwhelming, especially with irregular verbs, as you can see below:

Lui vuole he io vada a casa presto.

He wants me to go home early. (lit: he wants that I go home early)

Spero che tu possa uscire domani.

I hope that you can go out tomorrow.

Credo che lui faccia il cuoco.

I think that he is a cook (lit: I think that he does the cook)

Nuance in Context

Last but not least reason why I think the subjunctive mood is tricky, it is that it is used to convey specific meanings, and these specific meanings are quite abstract. It is as if I asked you to think about something that does not exist. How can you do that?

Specifically, in Italian we rely on the subjunctive to indicate uncertainty or subjectivity, like:

È possibile che piova domani.

It’s possible that it might rain tomorrow.

Tips for Mastering the Subjunctive

Practice With Common Expressions

Start with phrases where the subjunctive is commonly used:

Spero che tu stia bene.

I hope you are well.

Voglio che tu sappia la verità.

I want you to know the truth.

These everyday phrases help build comfort with the forms in a natural context.

Pair Verbs With the Subjunctive

Many verbs – or expressions – which express doubt, emotion, or subjectivity are often followed by the subjunctive. My advice is that you learn what these verbs are, so you can sort of predict when to use the congiuntivo.

  • Credere (to believe)
  • Pensare (to think)
  • Sperare (to hope)
  • Desiderare (to desire/wish)
  • Dubitare (to doubt)
  • Temere (to fear)
  • Volere (to want)
  • Preferire (to prefer)
  • Immaginare (to imagine)
  • Aspettarsi (to expect)
  • Consigliare (to advise)
  • Suggerire (to suggest)
  • È possibile (it is possible)
  • È probabile (it is probable)
  • È sicuro (it is sure)

These verbs are typically followed by the relative pronoun che and then the subjunctive form of the verb in the dependent clause. For example:

Credo che lui abbia finito il lavoro.

I believe he has finished the work.

Temevo che non funzionasse.

I feared it wasn’t working.

È probabile che il ristorante sia chiuso.

It is probable that the restaurant is closed.

Ero sicura che avesse preso il treno.

I was sure s/he took the train.

Focus on Irregular Forms

Irregular verbs are considered irregular because they significantly deviate from the standard conjugation patterns. Irregularities do not affect their endings, but their root.

In order to learn these irregular verbs, the only thing you can do is dedicate enough time to memorizing them. In fact, when it comes to memorizing irregular verbs, it is as if you were memorizing vocabulary.

These verbs are aleatory: all you can do to master Italian irregular verb is to learn them by heart. Here, I will show you 5 common verbs that are irregular in the subjunctive mood:

Essere (to be)

Subject Presente Passato Imperfetto Trapassato
Io sia sia stato fossi fossi stato
Tu sia sia stato fossi fossi stato
Lui/Lei sia sia stato fosse fosse stato
Noi siamo siamo stati fossimo fossimo stati
Voi siate siate stati foste foste stati
Loro siano siano stati fossero fossero stati

Avere (to have)

Subject Presente Passato Imperfetto Trapassato
Io abbia abbia avuto avessi avessi avuto
Tu abbia abbia avuto avessi avessi avuto
Lui/Lei abbia abbia avuto avesse avesse avuto
Noi abbiamo abbiamo avuto avessimo avessimo avuto
Voi abbiate abbiate avuto aveste aveste avuto
Loro abbiano abbiano avuto avessero avessero avuto

Andare (to go)

Subject Presente Passato Imperfetto Trapassato
Io vada sia andato andassi fossi andato
Tu vada sia andato andassi fossi andato
Lui/Lei vada sia andato andasse fosse andato
Noi andiamo siamo andati andassimo fossimo andati
Voi andiate siate andati andaste foste andati
Loro vadano siano andati andassero fossero andati

Fare (to do/make)

Subject Presente Passato Imperfetto Trapassato
Io faccia abbia fatto facessi avessi fatto
Tu faccia abbia fatto facessi avessi fatto
Lui/Lei faccia abbia fatto facesse avesse fatto
Noi facciamo abbiamo fatto facessimo avessimo fatto
Voi facciate abbiate fatto faceste aveste fatto
Loro facciano abbiano fatto facessero avessero fatto

Venire (to come)

Subject Presente Passato Imperfetto Trapassato
Io venga sia venuto venissi fossi venuto
Tu venga sia venuto venissi fossi venuto
Lui/Lei venga sia venuto venisse fosse venuto
Noi veniamo siamo venuti venissimo fossimo venuti
Voi veniate siate venuti veniste foste venuti
Loro vengano siano venuti venissero fossero venuti

Face the Italian Congiuntivo

Learning the subjunctive requires patience and practice. Listening to how native speakers use it, and start with mimicking these structures to practice.

Remember: even native Italians sometimes get it wrong! But most importantly, almost nobody consciously thinks, “I’m using the subjunctive”.

We, as natives, learn it naturally. You, as learner, might need to understand why we use it in the first place. By exposing yourself to Italian content, you can start to grasp the right contexts to use subjunctive.

So, when next faced with an opportunity to express doubt or hope in Italian, remember to reach for that congiuntivo. You might find yourself saying:

Spero che imparare il congiuntivo non sia troppo difficile.

I hope learning the subjunctive isn’t too difficult.

Key Terms and Concepts

Words

soggettosubject
verboverb
aggettivoadjective
sostantivonoun
generegender
numeronumber
congiuntivosubjunctive
articoloarticle
accordoagreement
desideriodesire

Phrases

maschilemasculine
femminilefeminine
articoloarticle
aggettivoadjective
sostantivonoun
concordanzaagreement
congiuntivosubjunctive mood
chethat
voglioI want
siabe (subjunctive)

Sentences

La casa è bella.

The house is beautiful.

Il libro è interessante.

The book is interesting.

Spero che tu abbia una buona giornata.

I hope you have a good day.

Voglio che lui venga alla festa.

I want him to come to the party.

Credo che sia importante studiare.

I believe that it is important to study.

FAQs

What is the hardest part about Italian?

The subjunctive mood in Italian, which includes the present, present perfect, past, and future forms, is widely considered as one of the most challenging grammatical concepts for English speakers to grasp. This is primarily because subjunctive constructions are not commonly utilized in the English language.

How complicated is Italian grammar?

Learning Italian grammar can be a daunting task, especially for those who want to move from a higher intermediate to an advanced level. Nevertheless, with dedication and persistence, it is possible to conquer these challenges without feeling overwhelmed.

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