In Spanish, singular nouns often become plural by adding -s. So, the majority of these sentences will either be adding -s to nouns (and any adjectives that correspond to them) or taking away -s. You will also need to make sure that the verbs agree, if these verbs specifically refer to the nouns you're changing: 1. Esta falda elegante está de moda. 2. Compraste aquellos trajes marrónes? 3. Este sombrero cuesta cuarenta dólares. 4. Pienso comprar aquella camisa verde. 5. Esas vendedoras están organizando los zapatos.