Dutch definite articles are de for common-gender nouns and all plurals, and het for neuter nouns: de man, het kind, de kinderen. The indefinite article is een (a or an) for both genders. Demonstratives distinguish near and far: deze (this — de-word), dit (this — het-word), die (that — de-word), dat (that — het-word). Possessives: mijn (my), jouw or je (your), zijn (his), haar (her), ons or onze (our), jullie (your plural), hun (their).
Ons versus onze follows the adjective-inflection rule: ons huis (het-word) but onze tuin (de-word). The same pattern applies to adjective inflection after een: een groot huis (het-word, no -e) versus een grote tuin (de-word, with -e). After definite articles and demonstratives, the adjective always takes -e: het grote huis, dit grote huis. This adjective inflection pattern is the same one that governs all attributive adjectives.
Indefinite pronouns — iemand (someone), niemand (nobody), iets (something), niets (nothing), alles (everything), elk or elke (each) — function as determiners or pronouns depending on position. Elke before de-words and elk before het-words is the standard pattern: elke dag, elk huis. When in doubt about inflection, defaulting to adding -e will be correct the majority of the time in Dutch, making it a practical learning strategy.