194. In certain verbs the vowels
e and o of the syllable preceding the
infinitive ending undergo certain regular changes. These verbs fall
into three classes, which are sometimes called the first, second
and third classes of irregular or radical-changing verbs. For the
rules governing all the changes in question, see 461-466.
Learn the first class of the radical-changing verbs, 461.
Verbs of this class are all of the first and second conjugations.
195. The following radical-changing verbs belong
to the first class:
| acordarse, |
to remember. |
calentar, |
to warm. |
| acostarse, |
to go to bed, lie. |
cerrar, |
to close. |
| almorzar, |
to breakfast. |
comenzar, |
to begin. |
| contar, |
to count. |
despertar, |
to awake, awaken. |
| costar, |
to cost. |
negar, |
to deny. |
| mostrar, |
to show. |
pensar (en), |
to think. |
| probar, |
to prove, try. |
sembrar, |
to sow, plant. |
| soltar, |
to loosen, let go. |
sentarse, |
to sit down. |
| volar, |
to fly. |
entender, |
to understand. |
| cocer, |
to cook. |
perder, |
to lose. |
| volver,1 |
to turn, return. |
| |
| 1
For the irregular past participle see 494. |
|
