except the noi and voi forms. Technically, the only real imperative forms are the second-person singular and plural, with the other persons being borrowed from the present subjunctive. Non-finite forms Infinitive: present: -are, -ere, -ire; past: avere/essere + past participle Gerund: present: -ando, -endo, -endo; past: avendo/essendo + past participle Participle': present: -ante -ente -ente; past: -ato, -uto (though verbs of the second conjugation almost always have a contracted desinence, e.g. "cuocere" (to cook) "cotto" (cooked)), -ito Irregular verbs While the majority of Italian verbs are regular, many of the most commonly used are irregular. In particular, the auxiliary verbs essere, stare and avere, and the common modal verbs dovere (expressing necessity or obligation), potere (expressing permission and to a lesser degree ability), sapere (expressing ability) and volere (expressing willingness) are all irregular. The only irregular verbs of the first conjugation are dare (to give), which follows the same pattern as stare, and andare (to go), which features suppletive forms in the present of the indicative, subjunctive and imperative from the Latin verb VADERE. While apparently a 1st conjugation verb, fare is actually a highly irregular verb of the second conjugation. Even the third conjugation features a small handful of irregular verbs, like morire (to die), whose present is muoio, muori, muore, moriamo, morite, muoiono (indicative) and muoia, muoia, muoia, moriamo, moriate, muoiano (subjunctive). The second conjugation combines the second and third conjugation of Latin; since the verbs belonging to the third conjugation were athematic, and they behaved less regularly than the ones belonging to the other conjugations (compare AMĀRE > AMAVI, AMATVS, first conjugation, and LEGĚRE > LEGI, LECTVS, third conjugation), the second conjugation Italian features many irregularities that trace back to the original paradigms of the Latin verbs: amare > amai, amato (first conjugation, regular), but leggere > lessi, letto (second conjugation, irregular). Adverbs An adjective can be made into a modal adverb by adding -mente (from Latin "mente", ablative of "mens" (mind), feminine noun) to the ending of the feminine singular form of the adjective. E.g. lenta "slow (feminine)" becomes lentamente "slowly". Adjectives ending in -re or -le lose their e before adding -mente (facile "easy" becomes facilmente "easily", particolare "particular" becomes particolarmente "particularly"). These adverbs can also be derived from the absolute superlative form of adjectives, e.g. lentissimamente ("very slowly"), facilissimamente ("very easily"). There is also a plethora of temporal, local, modal and interrogative adverbs, mostly