| Form | Conjugation | 
|---|---|
| Plain? | 掘りこむ | 
| Past? | 掘りこんだ | 
| Negative? | 掘りこまない | 
| Volitional? | 掘りこもう | 
| Imperative? | 掘りこめ | 
| Polite imperative? | 掘りこみなさい | 
| 〜たい? | 掘りこみたい | 
| Conditional (〜えば)? | 掘りこめば | 
| Conditional (〜たら)? | 掘りこんだら | 
| Potential? | 掘りこめる | 
| Passive? | 掘りこまれる | 
| Causative? | 掘りこませる | 
| Prohibitive? | 掘りこむな | 
| 〜ます? | 掘りこみます |