atarashii ie no kagi o motte imasu.

direct object particle

Breakdown of atarashii ie no kagi o motte imasu.

• の: possessive case particle
• 新あたらしい: new
• 家いえ: house

Questions & Answers about atarashii ie no kagi o motte imasu.

What is the function of の in 家の鍵?

The particle の here marks a genitive (possession/relationship). 家の鍵 literally means “the key of (the) house,” i.e. “house key.”

Why doesn’t 新しい take の before 家?

新しい is an i-adjective, so it directly modifies the noun 家 without needing の. You only need の when linking two nouns (e.g. 息子の本 “son’s book”).

What does the particle を indicate in 鍵を?

を marks 鍵 as the direct object of the verb 持って います. It tells us what is being “had” or “held.”

What does the form 持って　います mean? Why not just 持ちます?

持って います is the -te form of 持つ + the auxiliary いる, creating the progressive/state aspect, so it means “to be in possession of” or “to have.”
持ちます is the simple non-continuous form (“I will hold” or “I hold”), but Japanese normally uses 持って いる for ongoing possession.