THE VERB 'TENER:' to have

The verb TENER is highly irregular in the manner it is conjugated.  It does NOT follow any pattern.  Essentially the only way to remember how it is conjugated is through using it a lot and memorization.

Following is the conjugation of TENER (to have)..

(yo) tengo I have
(tú) tienes you (familiar) have
(usted) tiene you (formal) have
(él) tiene he has
(ella) tiene she has
(nosotros) tenemos we have
(ustedes) tienen 'you all' have
(ellos) tienen they have    (all guys or mixed company)
(ellas) tienen they have    (girls only!)