Quantity and indefinite words

Molto means much/many, poco little/few, tanto a lot of and troppo too much/many. When describing a noun, they agree with it: molto pane, molta acqua, molti libri, molte case.

When molto strengthens an adjective, it does not change: molto bella, molto belli. Compare molte case (many houses) with case molto belle (very beautiful houses). Likewise, distinguish troppa acqua (too much water) from troppo calda (too hot).

Qualche means some or a few but takes a singular noun: qualche libro. Alcuni/alcune take plural nouns: alcuni libri, alcune case. Ogni means every and takes a singular noun: ogni giorno. Do not add a definite article before them in these expressions.

Del pane means some bread; dell’acqua means some water; dei libri means some books. Here del/della/dei… act as partitive articles. Distinguish this from possession: il libro del ragazzo means the boy’s book. Context determines the meaning.

Molte case, but molto belle. Qualche + singular, alcuni/alcune + plural, ogni + singular. Del pane expresses an unspecified quantity.