The present participle is swelling.
The past participle is swelled.
The past participle of "swell" is "swollen".
The present participle of "swell" is "swelling."
The past of "swell" is "swelled" and the past participle is "swollen."
Being is the present participle. The past participle is been.
Present participle: talking Past participle: talked
Present: study Past: studied Past participle: studied
The present participle of "sow" is "sowing," and the past participle is "sown."
The present participle of beat is beating, and the past participle is beaten.
The past participle of "begin" is "begun" and the present participle is "beginning."
Present participle: hiding Past: hid Past participle: hidden
Present tense: lead Present participle: leading Past tense: led Past participle: led
The past participle of "become" is "became" and the present participle is "becoming."