Struck is the past tense and past participle of strike. Striking is the present participle.
Present tense: lead Present participle: leading Past tense: led Past participle: led
Present tense: am Past tense: was Past participle: been
Past tense: bit Present participle: biting Past participle: bitten
Present participle: pulling Past tense: pulled Past participle: pulled
Struck is the past tense and past participle of strike. Striking is the present participle.
Present tense: lead Present participle: leading Past tense: led Past participle: led
Present tense: am Past tense: was Past participle: been
Past tense: bit Present participle: biting Past participle: bitten
Present participle: pulling Past tense: pulled Past participle: pulled
The past participle is done. The simple past tense is did. The present participle is doing.
The past tense and past participle is equipped; equipping is the present participle.
The present tense is "come". The past participle is "come", as well. "Came" is the past tense.
The past tense is brought. The past participle is brought. The present participle is bringing.
Past tense: bound Present participle: binding Past participle: bound
Wrote is the past tense, written is the past participle, and writing is the present participle.
Past tense: rang Present tense: ring Past participle: rung Simple past: rang Present participle: ringing