| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | do forget | 15 |
|
| 2 | do forget | 6 |
|
| 3 | [vb past] forget | 6 |
|
| 4 | [vb base] forget | 6 |
|
| 5 | did forget | 6 |
|
