Este esta esto?
 

it's been a while but, what do these mean and how are they used, este esta y esto y tambien eso y esa? gracias, mucho!

Two words, singular in form, with three genders (masculine, feminine, neuter).

este, esta, esto = this (referring to a singular object)
ese, esa, eso = that (referring to a singular object)

The plural forms are:
estos, estas, estos = these (plural object)
esos, esas, esos = those (plural object)

Sorry, but "esto" and "eso" haven't plural form, since they are neutral forms (without gender and number). ;)

Oh! Thanks for correcting me.

:)Now I know the difference between "esta" and "está". Thank you all.:):thumbsup:

The original poster wrote:

este, esta, esto = this (referring to a singular object)
ese, esa, eso = that (referring to a singular object)

The plural forms are:
estos, estas, estos = these (plural object)
esos, esas, esos = those (plural object)

How would we correct this, by deleting the plural forms (2nd paragraph)?

How would I say 'She is nice' and 'They are nice'? Would I just use the ser conjugations (es and son)?

Sorry....didn't mean to start a new subject with that question.

The new topic has nothing to do with the determiners, but yes, you would use 'es' and 'son' in those sentences.

As irmamar pointed out, there is no plural form of esto or eso. So, the plurals for este, esta, ese and esa are still valid. (Just the second occurrence of estos and esos is invalid).

este cuaderno
estos cuadernos
esta casa
estas casas

ese cuaderno
esos cuadernos
esa casa
esas casas

O sea que decir "esos palomos o estos palomos" estaría mal y hay que decir "eso palomos o esto palomos", correcto?

Realmente no sé que comida he estado comiendo estos 30 últimos años, pero necesito ponerme a la par. (Creo) :)

If there is no plural form for esto or eso, how come they look plural in your list?

estos cuadernos

esos cuadernos

Those are the plural forms of este and ese, respectively.