| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | not been [prep] | 534 |
|
| 2 | not been [prep] | 534 |
|
| 3 | [adv] been at | 150 |
|
| 4 | not [be] at | 114 |
|
| 5 | not be at | 114 |
|
| 6 | [not/n't] been at | 50 |
|
| 7 | not been at | 50 |
|
| 8 | not been at | 38 |
|
| 9 | not [been] at | 38 |
|
