Somos is the first person of the plural of the verb "ser" (masculine and feminine) Nosotros somos

easy Yo soy Tu eres El es Ella es Nosotros somos Ustedes son Ellos son

thank you Ramiro

"somos" is 1st person in plural : Nosotros somos españoles, nosotras somos inteligentes....(we are Spanish, we are smart), and "son" is 3rd person in plural: Ellos son amables, Ellas son estudiantes...(They are polite, They are students)...the verb form don´t change with genre.

Thank You Vanessa, You made it very clear and easy to understand.