In short

Italian verbs come in three families, named after their infinitive ending: -are, -ere, -ire. Drop that ending, add the six present endings for the family, and you can talk about the present, the habitual and the immediate future all at once. One extra thing to learn: many -ire verbs insert -isc- (finire -> finisco).

The rule

The form you find in a dictionary is the infinitive: parlare (to speak), credere (to believe), dormire (to sleep). It never appears as a finished sentence - you must conjugate it.

• Step 1 - Find the stem. Remove the last three letters of the infinitive: parlare -> parl-, credere -> cred-, dormire -> dorm-.
• Step 2 - Add the ending for the person. Each family has its own set of six. They overlap a lot, so learn the differences, not six separate lists.
• Step 3 - For an -ire verb, check the subclass. Some -ire verbs add -isc- between the stem and the ending in four of the six forms.

The endings carry the person. Because parlo can only mean “I speak” and parli can only mean “you speak”, Italian normally drops the subject pronoun: you say Parlo italiano, not Io parlo italiano (see Subject pronouns and the polite Lei). The verb ending is not decoration - it is the information.

One present, three English meanings. Italian has a single present tense here: Mangio = “I eat”, “I am eating” and “I do eat”. Italian also uses it for a scheduled near future: Parto domani = “I’m leaving tomorrow”.

The -isc- subclass

Roughly half of the common -ire verbs insert -isc- before the ending - but only in the forms where the stress falls on the stem: io, tu, lui/lei and loro. The noi and voi forms are always plain: finiamo, finite - never finisciamo.

There is no rule that predicts which -ire verbs do this, so learn each verb with its io form: finire (finisco), dormire (dormo). The good news is that the -isc- group is the larger and more productive one, so when a new -ire verb turns up, -isc- is the safer bet.

Spelling adjustments that keep the sound

The -i and -iamo endings begin with i, and that collides with the c/g spelling rule from Pronunciation, spelling and stress (reading & pronunciation guide). Two opposite fixes result:

• -care / -gare verbs add an h (cercare, pagare, giocare, spiegare). In cerco the c is hard; before the i of cerchi it would go soft, so an h is inserted to protect it: cerco -> cerchi, cerchiamo; pago -> paghi, paghiamo. This affects tu and noi only.
• -ciare / -giare verbs drop an i (cominciare, mangiare, viaggiare, lasciare). Here the i is already in the stem, where its job is to keep the c/g soft. The ending supplies its own i, so the two merge into one: mangio -> mangi (never mangii), comincio -> cominci. Same at noi: mangiamo, cominciamo, not mangiiamo.

Both are spelling, not sound: nothing about the pronunciation of the verb changes. These verbs are still fully regular.

Where the stress falls

The loro form pulls the stress back onto the stem: PARlano, CREdono, DORmono, fiNIscono - never par-LA-no. It is the one form learners routinely stress wrong.

Forms & patterns

The three regular conjugations, plus the -isc- subclass:

The endings alone - notice how much is shared:

Which -ire verbs take -isc-? Learn them in pairs:

The c/g spelling adjustments (bold = adjusted cell):

Examples

Common mistakes

• voi credite -> voi credete - the voi ending is the one place the three families really split: -ate / -ete / -ite. Match it to the infinitive.
• loro parlano pronounced par-LA-no -> PARlano - the stress goes back onto the stem in the loro form of every regular verb.
• loro parlono -> loro parlano - an -are verb keeps its a: -ano. Only -ere and -ire verbs take -ono.
• noi finisciamo -> noi finiamo - -isc- never appears at noi or voi; those forms are always plain.
• tu mangii / tu cerci -> tu mangi / tu cerchi - the stem i of mangiare merges with the ending, while cercare needs an h to keep the c hard.

Tips

• Chant the io and tu rows first: every regular verb, all three families, ends in -o and -i. That is a third of the work done for free.
• noi is -iamo for all three families, with no exceptions - and it is the same form you will meet again in the subjunctive and the imperative.
• Learn every new -ire verb as a pair with its io form (capire, capisco). It is the only way to know the subclass, and it takes no extra effort at the moment you meet the word.
• The h in cerchi and the missing i in mangi solve the same problem from opposite sides: the ending’s i would soften a hard c/g, or duplicate one that is already soft. Sound wins, spelling adapts.
• Not every verb that looks regular is: andare, fare, venire and dire end in -are/-ere/-ire but are irregular - they are the next verb lesson.