i forget the password of icloud for my ipad

It sounds like your talking about the Activation Lock ...

Find My iPhone, iPad, iPod a Touch or Mac

https://www.apple.com/support/icloud/find-my-device/

Find My iPhone Activation Lock

http://support.apple.com/kb/HT5818

Find My iPhone Activation Lock: Removing a Device from a Previous Owner's Account

http://support.apple.com/kb/ts4515

Apple release Tool to check the Activation Lock Status of iOS Devices

http://www.idownloadblog.com/2014/10/01/activation-lock-status-check/

If you forgot the password see the following ...

If you forgot your Apple ID password

AND ... if you have further problems then contact Apple Support ...

Apple Support

http://www.apple.com/support/

Wife's phone is in activation lock my Apple ID and password will not work to unlock it???

Does she have an Apple ID?

If you are the original owner, take the device, the original purchase receipt, and a photo ID to the nearest Apple Store.

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