sostituisci

Sostituisci is the second-person singular present tense form of the Italian verb sostituire, and it is also the imperative form used to give a direct command to replace something. In everyday language, sostituisci can mean to substitute or to replace one thing with another, and it can be used in a wide range of contexts, from editing a text to changing a component in a device or a player in a team lineup.

The verb sostituire comes from Latin substituere, meaning to place in place of another, with the sense of putting something in place of something else. Related nouns include sostituzione (substitution) and sostituto (substitute or replacement).

Conjugation and usage notes: sostituire is a regular -ire verb with an -isc- stem in many present-tense forms. In the present indicative, the forms are io sostituisco, tu sostituisci, lui/lei sostituisce, noi sostituiamo, voi sostituite, loro sostituiscono. The imperative for the informal singular is sostituisci, while formal commands use sostituisca (Lei) or sostituiate (voi). The past participle is sostituito, used with avere in compound tenses (ho sostituito). Other moods include the present subjunctive (che io sostituisca) and the future (sostituirò, sostituirai, sostituirà, etc.).

Common contexts include editing text (sostituisci questa parola con quella), repairs or replacements (sostituire un componente), and sports or roles (il giocatore è stato sostituito; devi sostituire il tempo perso). The term is closely linked to the concept of substitution and replacement in various domains.