Other frequently used verbs with irregular forms in the present tense:
Study the conjugations of the verbs that follow.
decir (to say) digo / decimos / dices / decís / dice / dicen
ir (to go) voy / vamos / vas / vais / va / van
oír (to hear) oigo / oímos / oyes / oís / oye / oyen
ser (to be) soy / somos / eres / sois / es / son
tener (to have) tengo / tenemos / tienes / tenéis / tiene / tienen
venir (to come) vengo / venimos / vienes / venís / viene / vienen
Note that haber is also irregular. One meaning of haber is to have. However, in the present as well as in other tenses, haber is more frequently used as an impersonal verb in the third-person singular form. The present tense form is hay. It means there is and there are.
Hay tres sillas en la sala. -> There are three chairs in the living room.
Hay una posibilidad solamente. -> There is only one possibility.
Compounds of tener have the same irregular forms.
VERBS LIKE tener
contener – to contain > contengo
detener – to detain > detengo
mantener – to maintain > mantengo
obtener – to obtain > obtengo
retener – to retain > retengo
sostener – to sustain > sostengo