Las niñas les duele la cabeza.
Nosotros nos duelo la cabeza.
A ellas les duela las cabezas.
Está empezando a dolerme la cabeza.
TRUE -Verbs with infinitives ending in –ir form a third group of regular verbs, often called third conjugation verbs. To form the present tense conjugations of these verbs, drop the –ir from the infinitive and add the third conjugation endings (-o, -es, -e, -imos, -en) to the resulting stem.
1. corren (ellos form)
2. abre (Ud. form)
Claudia y Nicole ayudan a María a mudarse.
You would use the ellos/ellas conjugation of ayudar because there are two people completing the verb.
