Can I temporarily use my credit card in PayPal?

From what I know, you can only use credit cards in Paypal. Also, I think you can receive funds in paypal even without a card linked. Although there are limitations to your account so it is most preferable if you link a credit card with it. Try browsing through with your account. You will be able to see limitations mentioned on receiving and sending when your account is not linked. I forgot already since mine is already linked with a credit card.

You can use your credit card for activating/verifying your Paypal account. But you cannot use this card to get your earnings. I suggest that you get a debit card first before withdrawing your money. Though Paypal is safe to use in terms of transffering money in the internet, it's much safer to use your debit card instead of revealing private information about your credit card online.

Go ahead and use it and wait until the transaction clears then you can change it later. PayPal does allow you to change information, you just have to verify again. Why would you not leave it there though? I have mine there for a year with no problems at all.