house
The German word 'Haus' is used to refer to a building for human habitation. It is a noun and is used in the same way as the English word 'house'. For example, 'Ich gehe nach Hause' means 'I am going home'.
My house is very big.
This sentence conveys a simple positive statement in present tense, showing ownership (mein - my) and using an adjective (groß - big) to describe a noun (Haus - house).
A simple declarative sentence stating location. This sentence uses the possessive 'Ihr' denoting 'your' and 'neben' meaning 'next to', declaring the position of the house relative to the park.
None
The house has many rooms.
This sentence is stating a fact about the house, which is, it having many rooms. The verb 'hat' is a third person singular form of 'haben' which means 'to have'. 'Viele' translates to 'many', while 'Zimmer' translates to 'rooms'.