Explanation: Regular -ar verbs use "-o" for "yo" (I). Hablar: hablo, hablas, habla, hablamos, habláis, hablan.
Explanation: Regular -ar verbs use "-a" for third person singular (ella, él, usted). Trabajar: trabajo, trabajas, trabaja, trabajamos, trabajáis, trabajan.
Explanation: The nosotros form of -ar verbs ends in "-amos". Caminar: camino, caminas, camina, caminamos, camináis, caminan.
Explanation: With plural subjects (ustedes), -ar verbs use the "-an" ending. Note: "gustar" behaves specially (the thing being liked is the subject), but follows the same conjugation pattern.
Explanation: Regular -ar verbs use "-an" for ellos/ellas/ustedes. The "no" goes before the verb for negation.
Explanation: The "tú" form of -ar verbs ends in "-as". Bailar: bailo, bailas, baila, bailamos, bailáis, bailan.
Explanation: Remove the conjugated ending "-o" and add "-ar" to find the infinitive. The infinitive is the base form of the verb.
Explanation: Subject-verb agreement is required. "Ellos" (they, plural) goes with "-an" ending. Estudiar: estudio, estudias, estudia, estudiamos, estudiáis, estudian.