Reciprocal se

While English has dedicated reciprocal pronouns ("each other", "one another"), Romanian simply reuses its reflexive pronouns in plural contexts (ne, vă, se) to express mutual actions.

1. Ambiguity and Context
Because the form is identical to the true reflexive, a sentence like Ei se laudă is technically ambiguous between "They praise themselves" and "They praise each other." In everyday speech, context almost always makes the meaning obvious. If you need to force the reciprocal reading unambiguously, you can add the phrase unul pe altul, the adverb reciproc (mutually), or common phrases like între noi (between us), între voi (between you), între ei (between them, masculine), and între ele (between them, feminine). When using unul pe altul, note that while the plural forms (e.g., unii pe alții for males/mixed, unele pe altele for females) emphasize a larger group, the singular forms (unul pe altul, una pe alta) are frequently used as generic phrases regardless of the exact number of participants.

2. Placement and Form
Like other clitics, se typically sits right before the verb (proclitic). However, there are important phonological and structural rules to remember:

• Before the vowel-initial auxiliary a avea in the compound perfect—it takes the form s- and attaches with a hyphen (e.g., ei s-au ajutat).
• It attaches to the end of the verb (enclitic) in the gerund (e.g., ajutându-se).
• In the affirmative imperative, it attaches to the end of the verb with a hyphen (e.g., Ajutați-vă!), but sits before the verb in negative commands (e.g., Nu vă ajutați!).

3. Dative Reciprocals
Reciprocal actions can also occur in the dative case. For the 1st and 2nd person plural, the forms ne and vă serve as both accusative and dative reciprocals (e.g., Ne scriem = We write to each other). For the 3rd person, the dative reflexive pronoun își is used (e.g., Ei își scriu = They write to each other). Before a vowel-initial auxiliary, își obligatorily elides to și- and takes a hyphen (e.g., Ei și-au scris = They wrote to each other). To disambiguate dative reciprocals, use the phrase unul altuia. Just like in the accusative, the singular forms (unul altuia for males/mixed, una alteia for females) are often used generically for any number of participants, while the plural forms (unii altora, unele altora) specifically emphasize a larger group.

4. Distinguishing from Other Uses
At an advanced level, you must distinguish the reciprocal se from passive se. The reciprocal requires a plural, usually animate subject whose members act mutually. The passive typically involves an inanimate subject being acted upon by an unstated agent (e.g., Aici se vând case = Houses are sold here).

The presence of a vowel alone does not force contraction: compare se ajută with s-au ajutat. Explicit phrases such as unii pe alții are grammatical and useful for clarity or emphasis, not errors to remove automatically.