| Base form (v1) | Sniff |
| Past form (v2) | Sniffed |
| Past Participle (v3) -ed form |
Sniffed |
| Present Participle (v4) ‘ing’ form |
Sniffing |
| Present simple (v5) s / es/ ies |
Sniffs |
Past continuous tense of sniff verb forms - Learn English Free Online
