-isc-

-isc- Pattern -ire Verbs

Level 1

Most Italian verbs ending in -ire (about 80%) are not 'regular' in the simplest sense. Instead, they insert the letters -isc- between the stem and the ending for all singular persons (io, tu, lui/lei) and the third-person plural (loro).

How It Works

While often called 'inchoative' verbs, the -isc- pattern in modern Italian has no specific meaning; it is simply a way to conjugate the verb.

How to conjugate:
Take a verb like capire (to understand). The stem is cap-.

  • io capisco
  • tu capisci
  • lui/lei capisce
  • noi capiamo (No -isc-)
  • voi capite (No -isc-)
  • loro capiscono

Key Rules:
1. Stress: The stress falls on the -i- of the -isc- (e.g., finìsco, finìscono). This keeps the stress off the root of the verb.
2. Frequency: This is the most common pattern for -ire verbs. While most new Italian verbs overall use the -are ending, the -isc- pattern is the productive model for any new verbs entering the -ire conjugation (like gestire).
3. Imperative: The pattern follows the 'boot' shape in the imperative. The tu, Lei, and loro forms take the -isc- infix (e.g., finisci!), while the noi and voi forms do not (e.g., finiamo!, finite!).
4. Subjunctive: Don't forget that the pattern continues in the present subjunctive (e.g., che io capisca).

Examples (5)

  1. Io capisco l'italiano molto bene.

    I understand Italian very well.

    Word by Word: I understand the Italian very well.

    The verb 'capire' adds -isc- for the 'io' form.

  2. Loro finiscono i compiti stasera.

    They are finishing their homework tonight.

    Word by Word: They finish the homework tonight.

    The 'loro' form adds -isc- and the stress is on the 'i': fi-nì-sco-no.

  3. Noi puliamo la cucina ogni giorno.

    We clean the kitchen every day.

    Word by Word: We clean the kitchen every day.

    Notice that 'pulire' does NOT use -isc- in the 'noi' form.

  4. Perché non preferisci il caffè?

    Why don't you prefer coffee?

    Word by Word: Why not (you) prefer the coffee?

    The 'tu' form of 'preferire' adds -isc-.

  5. Voi spedite il pacco domani?

    Are you (plural) sending the package tomorrow?

    Word by Word: You send the package tomorrow?

    The 'voi' form never takes the -isc- infix.

Common Mistakes

  • Applying the -isc- pattern to regular -ire verbs like 'partire' or 'sentire'.

    Io partisco domani.
    Io parto domani.

    Verbs like 'partire', 'sentire', and 'dormire' are part of the minority group that does not use -isc-.

  • Misplacing the stress in the 'loro' form.

    Loro finiscòno.
    Loro finìscono.

    In the 3rd person plural, the stress stays on the 'i' of the infix, not the ending.

  • Using -isc- in the 'noi' or 'voi' forms.

    Noi capisciano.
    Noi capiamo.

    The -isc- infix only appears in the 'boot' shapes of the conjugation table (1s, 2s, 3s, 3p).

How It Connects

Tap a pattern to see what it builds on and what it leads to.

-isc-Level 1-isc- Pattern -ire Verbs

Learn This First

To understand the -isc- pattern, you first need to be familiar with the standard present tense endings for -ire verbs. Additionally, you must know the subject pronouns to distinguish between the forms that take the -isc- suffix and the 'noi' and 'voi' forms that do not.

Words in This Pattern

-isc--ire
Sources
  1. learnamo.com
  2. adyates.com
  3. elon.io
  4. glossa-journal.org
  5. unife.it
  6. dokumen.pub