The present participle of the verb to scratch is scratching. The past participle is scratched.
Being is the present participle. The past participle is been.
The past participle of do is done. The past participle of have is had.
Present participle - winding Past participle - winded
Begun is the past participle, and beginning is the present participle.
The present participle is beating. The past participle is beat.
The present participle is "sowing" and the past participle is "sown".
The past participle of am is been. Not does not have a past participle
Scratch and scrimp
No, the word store is not a participle. The present participle is storing. The past participle is stored.
The past participle is "seen", and the present participle is "seeing".
The present participle is swelling. The past participle is swelled.
The past participle is proceeded. The present participle is proceeding.