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 N G A S 2 (V2)Past Simple of SINK A K S N 3 (V2)Past Simple of SIT A S T 4 (V2)Past Simple of SLEEP S T E L P 5 (V2)Past Simple of SMELL L M M E L D E S L E S / T 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 S T A 9 (V3)Past Participle of SLEEP S E L P T 10 (V3)Past Participle of SMELL L E E D T / L E L S S M M 11 (V1)Base form: CANTAR N S G I 12 (V1)Base form: HUNDIRSE K I N S 13 (V1)Base form: SENTARSE S T I 14 (V1)Base form: DORMIR L E P E S 15 (V1)Base form: OLER M L E S L