You left your bike out in the rain today. What is the possessive pronoun underlined word your bike

The possessive pronoun is "your".

You left your bike out in the rain today.

A possessive pronoun is that part of any sentence that provides "ownership" to something or to someone. It substitutes a noun sentence.

Examples:

The shirt is mine.

That is her pen.

Take your ball.

What words are possessive pronouns? Mine, yours, his, hers, its, ours, theirs.