| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have not seen him since | 17 |
|
| 2 | [verb] not seen him since | 17 |
|
| 3 | [vb base] not seen him since | 11 |
|
| 4 | have not seen him since | 9 |
|
| 5 | had not seen him since | 5 |
|
| 6 | [vb past] not seen him since | 5 |
|
| 7 | not seen him since [pron] | 10 |
|
| 8 | not seen him since [pers pn] | 10 |
|
