de + este(s)/esse(s)/ aquele(s)→→ de + esta(s)/essa(s)/ aquela(s)→→ de + isto/isso/aquilo→→ this

deste(s)→→→→ desta(s)→→→→ disto→→→→ this

desse(s)→→→→ dessa(s)→→→→ disso→→→→ this

daquele(s)→→→→ daquela(s)→→→→ daquilo→→→→ that