He is kissing someone's ring.

He kisses the Pope's ring.

He kissed someone's ring.

They will ring up the curtain on the new theater production tonight.

They decided to ring down the curtain on their relationship.

The actors are ringing down the curtain after their final performance.

She gave her friend a ring yesterday.

I will be giving someone a ring later today.

She gives me a ring every week.

I gave her a ring yesterday.