2.C Regular present verbs: -ar, -er, and -ir.

CONJUGATIONS 

Spanish has three types of verbs. Ones that end in -ar, others in -er, and others in -ir.

The verb form changes with each ending, subject, and in each tense.

To conjugate Present indicative regular verbs in Spanish,

1. You need to remove the ending:

2. add the ending that matches the subject.

NOTE: The endings for AR, ER, and IR verbs are different. The endings are as follows:

AR verbs endings

Practice: here.

ER verbs

Practice: here.

IR verbs

Practice: here.