| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been looking for | 156 |
|
| 2 | [vb base] been looking for | 72 |
|
| 3 | [vb past] been looking for | 48 |
|
| 4 | 've been looking for | 47 |
|
| 5 | had been looking for | 34 |
|
| 6 | have been looking for | 25 |
|
| 7 | [vb -s] been looking for | 19 |
|
| 8 | have been looking for | 15 |
|
| 9 | [vb infin] been looking for | 15 |
|
| 10 | 'd been looking for | 14 |
|
| 11 | has been looking for | 11 |
|
| 12 | 's been looking for | 8 |
|
