which sentence is written correctly?

1. Macy is going to a party now.

2. Macy was going to a party now.

3. Macy has been going to a party now.

4. Macy had been going to a party now.

which sentence is written correctly1 Macy is going to a party now2 Macy was going to a party now3 Macy has been going to a party now4 Macy had been going to a p class=