The past participle is leaned or (UK) leant.
leaned
The past tense of "lean" is "leaned," and the past participle is also "leaned."
The past participle of "do" is "done." The past participle of "have" is "had."
The past participle of am is been. Not does not have a past participle
The past tense of "have" is "had," and the past participle is also "had."
"leaned"
"leaned"
leaned
Yes, it is a form of the verb "to lean." It is the past tense and past participle of the verb.
The past participle of am is been. Not does not have a past participle
The past participle of "do" is "done." The past participle of "have" is "had."
The past tense of "have" is "had," and the past participle is also "had."
The past and past participle for "buy" is "bought."
Being is the present participle. The past participle is been.
The past participle is thought.
Eating is the present participle; eaten is the past participle.
"Did" is the past and "done" is the past participle.