Imp. Subj. (second form), construyese, -yeses, -yese, -yésemos, -yeseis, -yesen.

Subj. Fut., construyere, -yeres, -yere, -yéremos, -yereis, -yeren. b. Verbs ending in güir lose the dieresis when, in the course of inflection, the u precedes a consonant y:

ARGUIR, to argue. Pres. Part., arguyendo.

Ind. Pres., arguyo, -yes, -ye, argüimos, -ís, arguyen.

Subj. Pres., arguya, -yas, -ya, arguyamos, -yáis, arguyan.

Impv.,

-ye,

argüid.

Ind. Pret., argüí, -iste, arguyó, argüimos, -isteis, arguyeron. Imp. Subj. (first form), arguyera, -yeras, -yera, -yéramos, -yerais, yeran.

Imp. Subj. (second form), arguyese, -yeses, -yese, -yésemos, -yeseis, ..yesen.

Subj. Fut., arguyere, -yeres, -yere, -yéremos, -yereis, -yeren.

c. Verbs in eer, such as leer, to read, creer, to believe, are similar to the above, in that they substitute y for i when, in the course of conjugation, it meets e or o—that is, in the indicative preterit, third person, singular and plural; in the two forms of the imperfect subjunctive, in the future subjunctive, and in the present participle:

LEER, to read. Pres. Part., leyendo.

Ind. Pret., leyó, leyeron.

Subj. Imp. (first form), leyera, leyeras, leyera, leyéramos, leyerais, leyeran.

Subj. Imp. (second form), leyese, leyeses, leyese, leyésemos, leyeseis, leyesen.

Subj. Fut., leyere, leyeres, leyere, leyéremos, leyereis, leyeren. 206. Since the Spanish verb employs few auxiliaries, such as those used in English in the emphatic and progressive forms, it is commonly necessary to reduce the verb to its simple form before putting it into Spanish :

Compro,

I buy.
I do buy.

I bought.
Compré, { I did buy.

I am buying.

207. The progressive form may be expressed by the use of estar, to be; ir, to go; hallarse or encontrarse, to find one's self, to be; quedar, to remain; andar, to go, to walk; seguir, to continue, to go on; verse, to see one's self:

Estoy comprando, I am buying. V. está comprando, you are buyVoy vendiendo, I am selling.

ing.

Me hallé comprando, I was buy- Quedó viviendo, he went on living, (I found myself buying). ing, continued to live.

Está viviendo, he is living.

208. The verb ser, to be, is never used as an auxiliary to construct the progressive form of an active verb. This function is always performed by estar, to be.

209. Ser, to be, as has been said, is used to build up the passive voice, it being joined to the past participle of the verb to be inflected, whatever be its conjugation, and whether regular or irregular: