Questions about the Present Perfect
Q: Why is it tenho falado and NOT tenho falar?
The present perfect is formed with the present of ter followed by a past participle, not the infinitive.
Q: Why is it tenho feito and NOT tenho fazido?
Some verbs have irregular past participles. For example, fazer → feito (not fazido).
Q: Why is it a mulher que tenho visto and NOT a mulher que tenho vista?
When using ter as an auxiliary, the past participle does not agree in gender or number with the noun.