Unscramble Letters 21. IRREGULAR VERBS: UNDERSTAND, WAKE UP, WEAR, WIN, WRITE.Online version Practice Base Form, Past Simple and Past Participle of Irregular Verbs in English. by PONCE MAYOR Isabel 1 (V2)Past Simple of UNDERSTAND O N E O U S D T D R 2 (V2)Past Simple of WAKE UP W P E K U O 3 (V2)Past Simple of WEAR E R O W 4 (V2)Past Simple of WIN O W N 5 (V2)Past Simple of WRITE W R E T O 6 (V3)Past Participle of UNDERSTAND U O D R E T O D S N 7 (V3)Past Participle of WAKE UP P E O N U K W 8 (V3)Past Participle of WEAR N R O W 9 (V3)Past Participle of WIN N W O 10 (V3)Past Participle of WRITE E T R I N W T 11 (V1)Base form: ENTENDER D T S N A U N D R E 12 (V1)Base form: DESPERTAR(SE) W E A K P U 13 (V1)Base form: LLEVAR PUESTO; PONERSE E W R A 14 (V1)Base form: GANAR I N W 15 (V1)Base form: ESCRIBIR W R I E T