Answer:
1. THIS: Este (masculine), Esta (feminine)
2. THOSE (plural) : Estes (masculine), Estas (feminine)
3. THAT: Ese (masculine), Esa (feminine)
3. THOSE (plural): Eses (masculine), Esas (feminine)
5. THAT: Aquel (masculine), Aquella (feminine)
6. THOSE (plural): Aquellos (masculine), Aquellas (feminine)
Explanation:
The closest "this" objects are referred to as este and esta (masculine and feminine forms). The second-closest "that" objects are ese and esa (masculine and feminine forms). And the farthest "that, over there" objects are aquel and aquella (masculine and feminine forms).
To make them plural, in most cases, just add an "s" on the end. Aquellos is the only one where this rule doesn't apply, it changes to add an "los" to match aquellas.
Hope this helps.
