pertenezcas

Pertenezcas is the second-person singular form of pertenecer in the present subjunctive mood of Spanish. It corresponds to the tú form and is used in subordinate clauses that require the subjunctive.

Morphology and conjugation: The verb pertenecer has the stem pertenezc- in the present subjunctive. The forms are: yo pertenezca, tú pertenezcas, él/ella/usted pertenezca, nosotros pertenezcamos, vosotros pertenezcáis, ellos/ustedes pertenezcan. The tú form, pertenezcas, uses the -cas ending consistent with regular -er verbs in this mood, with a spelling change from the indicative stem to maintain the soft /z/ sound before the -a ending.

Usage: Pertenezcas appears after verbs, expressions, or conjunctions that call for the subjunctive, often expressing desire, doubt, necessity, possibility, or emotion. It is used in a clause introduced by que and addressed to the second person singular (tú). Examples: Es importante que tú pertenezcas al club. Quiero que tú pertenezcas a este grupo. Es posible que tú pertenezcas a esa organización. Even with conjunctions like aunque, subjunctive forms such as pertenezcas can occur: Aunque pertenezcas a esa familia, no tienes derecho a... The form usted pertenezca is the formal counterpart.

Notes: The indicative form meaning “you belong” is perteneces, not pertenezcas. Pertenezcas is standard across dialects that use the present subjunctive; regional variations may affect other persons but not this form’s basic function.