What is the past and participal of verb knee?

The verb "knee" is actually a noun that describes a part of the body. It's not a verb, so it doesn't have a past tense or past participle.

If you're looking for a verb related to the act of bending your knee, you might be thinking of:

* Kneel: This is the verb for getting down on your knees.

* Past tense: knelt

* Past participle: knelt

Let me know if you have any other questions!