Question

El papá y la mamá (tener) __________ dos hijos.

Answer 1

Tienen, because tener is a stem changing form so the first "e" becomes "ie" hope this helps you.

Answer 2

For this case, the first thing you should do is choose a verbal time.

Suppose that the verb tense is simple present.

We must conjugate the verb correctly for the third person of the plural.

We have then:

Ellos/ellas tienen

Then, the complete sentence in Spanish is:

El papá y la mamá tienen dos hijos.

The translation of the sentence in English is:

The father and the mother have two children.

Answer:

Tienen

El papá y la mamá tienen dos hijos.