In this exercise, you should put in the given words to complete a dialogue.

The words you can choose are: *either…or, neither, something, neither…nor,* and *someone.*

Remember that you can use double negatives in Spanish.

**Hint:** In Spanish, when you have a negative verb, you use a negative word with it. And vice-versa. When you do not have a negative verb, you do not use a negative word, but rather its affirmative or indefinite counterpart.

Example 1: **No** quiero comer **nada**. *(I **do not** want to eat **anything**.)*
Example 2: **Quiero** comer **algo**. *(I **want** to eat **something**.)*

Let’s translate the dialogue to get a better understanding and see if we need to put an indefinite or a negative word.

There are three people talking (A, B, and C).

*A: Hello, does ______ know how to burn a compact disc?*

This is a question, so we need an indefinite word. There is a subject missing, so the word that fits the best is *”anyone” (**alguien**).*

*B: No, I do not know and ______ does C.*

We have a negated verb here, so to put emphasis that both x and y do not know, we will use the word *”neither” (**tampoco**).*

*C: I know how to do it. You need to use ______ a mouse __ a keyboard.*

When you have two elements and the verb is not negated, you will use *”either…or” (**o…o**).*

*B: No. I think you do not need ______ a mouse __ a keyboard.*

When you have two elements and the verb is negated, you will put *”neither…nor” (**ni…ni**).*

*C: But he has to use ______!*

There is no verb negated in this sentence, so we do not need a negative word. We need an indefinite word here. There is an object missing, so the word that fits the best is *”something” (**algo**).*

See the **detailed explanation.**

1. alguien
2. tampoco
3. o…o
4. ni…ni
5. algo

In this exercise, you should write opposites. Since Osvaldo’s sentences are affirmative, Carmen’s will be negative.

**Hint:** In Spanish, when you have a negative verb, you use a negative word with it. And vice-versa. When you do not have a negative verb, you do not use a negative word, but rather its affirmative or indefinite counterpart.

Example 1: **Quiero** comer **algo**. *(I **want** to eat **something**.)*
Example 2: **No** quiero comer **nada**. *(I **do not** want to eat **anything**.)*

1. Osvaldo prefers either juice or soda.
Carmen prefers neither juice nor soda.
*(Carmen **no** prefiere **ni** un jugo **ni** un refresco.)*

Note how, in a Spanish sentence, the verb is negated and we used the negative conjunction *”neither…nor” **(ni…ni**).*

2. Osvaldo is always happy.
Carmen is never happy.
*(Carmen **nunca** está contenta.)*

When we have adverbs, we do not negate the verb to make an opposite sentence. We simply use the counterpart adverb. In this sentence, we used *always—never (**siempre—nunca**)* counterparts.

3. Osvaldo always talks to someone on the Internet.
Carmen never talks to anyone on the Internet.
*(Carmen **nunca** habla con **nadie** por Internet.)*

In this example, we have both the opposite adverbs *always—never (**siempre—nunca**)* and opposite words *someone—no one/anyone (**alguien—nadie**)*.

4. Osvaldo also likes to use instant messenger.
Neither Carmen likes to use instant messenger.
*(A Carmen **tampoco** le gusta usar el mensajero instantáneo.)*

Here, we have opposite words *also—neither(**también—tampoco**)*, the former being affirmative and the latter negative.

See the **detailed explanation.**

1. no prefiere ni…ni
2. nunca
3. nadie
4. tampoco

In this exercise, you should make grammatically correct sentences with the elements from the box.

**Hint:** Remember that double negation is allowed in Spanish.

1. Osvaldo **nunca compra nada.**
*(Osvaldo never buys anything.)*

2. Osvaldo **siempre recibe alguna cosa.**
*(Osvaldo always receives something.)*

*Alguna cosa* can be shortened to *algo,* the meaning is the same.

3. Osvaldo **de vez en cuando comparta con alguien.**
*(Osvaldo sometimes shares with someone.)*