La taza no está llena.

Son buenos; están buenos.

Es contento; está contento.

The cup is not full.

They are good; they are well.
He is of a contented disposition;
he is content.

188. Ser is used to form the passive voice, and estar to unite with the present participle to make the progressive form of the active voice:

Este libro ha sido traducido del This book has been translated from the Spanish. She is reading.

castellano.

Ella está leyendo.

THE REGULAR VERB

ACTIVE CONJUGATION

189. The conjugation of all regular verbs in the active voice follows three models, which are classified according to the ending of the infinitive. These are the endings:

Infinitives in ar characterize the First Conjugation: comprar, to buy.

Infinitives in er characterize the Second Conjugation: vender, to sell.

Infinitives in ir characterize the Third Conjugation: vivir, to live.

190. All verbs-regular, irregular, impersonal, and defective— belong to the conjugation indicated by the termination of their infinitive, no matter how much their inflection may differ in other respects from the models of regular verbs.

191. The terminations of the regular verb are applied to the stem, which can always be ascertained by striking off the infinitive ending:

viv.

Comprar: stem, compr; vender: stem, vend; vivir: stem,

192. The terminations of regular verbs of the three conjugations are as follows:

Haber comprado. to have bought. Habiendo comprado, having

PERFECT PARTICIPLE.