He (Which should be El, but anyway) visto is not correct, because you are talking about someone else. Yo Tengo is correct, because you are staying that you have seen.
Answer:
Top question: Conjugate
Lower Question: The person or people doing the action
Explanation:
Definition on conjugate: to give the different forms of a verb as they vary according to <u>voice, mood, tense, number, and person.</u>
When conjugating the verb has to correctly match with the "person or people doing the action", as stated above.
Frecuentemente el viaja a San Antonio.
Yo viajo
Tu viajas
El/ella viaja
Nosotros viajamos
Vosotros viajais
Ellos/ellas viajan.
