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esto /eso /aquelo ?

Hi, sunxqun!

In portuguese we say ISTO, ISSO and AQUILO.
There are no plural for these words. Otherwise, there are a lot of words similar, like ESTE, ESTA, ESSE, ESSA, AQUELE and AQUELA. To put this words in plural you just need to add a letter "s" in the end of the words.

I´m sorry about my english, but i´m still learning.
Hope you understand and enjoy.

Portuguese demonstrative nouns:

Nearby objects:

isto - no plural (isto: this one with me, this thing with me; note: isto is used when the object is in the speaker's influence sphere)
ex.: Isto é meu! (It's mine!)

isso - no plural (isso: this one with you, this thing with you; note: isso is used when the object is in the listener's influence sphere)
ex.: Isso só você sabe (Only you know about it)

este - estes (este: this; estes: these; note: masculine nouns only, used when the object is in the speaker's influence sphere)
ex.: Este é o meu trabalho (This is my job)

esta - estas (esta: this; estas: these; note: feminine nouns only, used when the object is in the speaker's influence sphere)
ex.: Esta é minha mãe (This is my mother)

esse - esses (esse: this; esses: these; note: masculine nouns only, used when the object is in the listener's influence sphere)
ex.: Esse é o seu trabalho (This is your job)

essa - essas (essa: this; essas: these; note: feminine nouns only, used when the object is in the listener's influence sphere)
ex.: Essa é sua filha? (Is this your daughter?)

So you have, for nearby objects:
isto - este/esta - estes/estas (speaker's influence sphere)
isso - esse/essa - esses/essas (listener's influence sphere)

Farther objects:

aquilo - no plural (aquilo: that, that thing)
aquele - aqueles (aquele: that one; aqueles: that ones; note: masculine nouns)
aquela - aquelas (aqueal: that one; aqueals: that ones; note: feminine nouns)

So you have, for farther objects:
aquilo - aquele/aquela - aquele/aquelas

Got questions? Hit me up :)