In Portuguese, the present tense verbs (formally called the preterite indicative) are divided into three groups: ar verbs, er verbs and ir verbs. All (well, almost!) verbs end in one of these.
Verbs ending in -ar
| falar | to speak | ||
| I speak | eu fal | o | |
| you/he/she speaks | você/ele/ela fal | a |
Verbs ending in -er
| entender | to understand | ||
| I understand | eu entend | o | |
| you/he/she understands | você/ele/ela entend | e |
Verbs ending in -ir
| partir | to depart | ||
| I depart | eu part | o | |
| you/he/she departs | você/ele/ela part | e |