The past participle is swollen.
The past participle of "swell" is "swollen".
Swelled.
The past of "swell" is "swelled" and the past participle is "swollen."
The present participle of "swell" is "swelling."
The past participle of "do" is "done." The past participle of "have" is "had."
The past participle of "am not" is "have not been."
The past tense of "swell" is "swelled."
The present participle is swelling. The past participle is swelled.
The past of "swell" is "swelled" and the past participle is "swollen."
The past participle of "am not" is "have not been."
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.
The past participle is had.
The past participle of "do" is "done."