Which is the long form of "tu cepillo"?

a. el cepillo vuestro
b. el cepillo suyo
c. el cepillo nuestro
d. el cepillo tuyo***

Perfect! Here are all the SHORT forms and their LONG FORMS:

mi/mis = mío, mía, míos, Mías
tu/tus = tuyo, tuya, tuyos, tuyas
su/sus = suyo, suya, suyos, suyas

nuestro/nuestra, nuestros, nuestras = nuestro, nuestra, nuestros, nuestras
vuestro/vuestra = vuestro, vuestra, vuestros, vuestras
su/sus = suyo, suya, suyos, suyas

Obviously the adjectives for "nosotros/nosotras & vosotros/vosotras require less work!"

Sra

The long form of "tu cepillo" would be "el cepillo tuyo."

The long form of "tu cepillo" is "el cepillo tuyo." To determine the correct answer, let's break it down:

The pronoun "tu" means "your" in English, and it is the second person singular informal form. In Spanish, possessive pronouns agree in gender and number with the noun they modify.

The noun "cepillo" means "brush" in English, and it is masculine.

Therefore, to express "your brush" in the long form, we use the possessive pronoun "tuyo," which means "yours" in English. The word "tuyo" agrees in gender and number with the noun that follows it, so we use the masculine form "tuyo."

Looking at the options provided:
a. "el cepillo vuestro" - "vuestro" is the second person plural possessive form, so it's not the correct answer.
b. "el cepillo suyo" - "suyo" is the third person singular or plural possessive form, so it's not the correct answer.
c. "el cepillo nuestro" - "nuestro" is the first person plural possessive form, so it's not the correct answer.
d. "el cepillo tuyo" - "tuyo" is the second person singular possessive form and agrees with the noun "cepillo," so this is the correct long form for "tu cepillo."

Therefore, the correct answer is d. "el cepillo tuyo."