Unscramble Letters 17. IRREGULAR VERBS: SING, SINK, SIT, SLEEP, SMELL.Online version Practice Base Form, Past Simple and Past Participle of Irregular Verbs in English. by PONCE MAYOR Isabel 1 (V2)Past Simple of SING S G N A 2 (V2)Past Simple of SINK N S A K 3 (V2)Past Simple of SIT A T S 4 (V2)Past Simple of SLEEP L T E S P 5 (V2)Past Simple of SMELL S E L T L S L D M E / M E 6 (V3)Past Participle of SING U S N G 7 (V3)Past Participle of SINK U S K N 8 (V3)Past Participle of SIT A T S 9 (V3)Past Participle of SLEEP S E P T L 10 (V3)Past Participle of SMELL S L D E L T M M E S / L E 11 (V1)Base form: CANTAR G N S I 12 (V1)Base form: HUNDIRSE S N K I 13 (V1)Base form: SENTARSE S T I 14 (V1)Base form: DORMIR S P E E L 15 (V1)Base form: OLER M L L E S