| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | often [been] [verb] | 405 |
|
| 2 | often [been] [vb pp] | 402 |
|
| 3 | [adv] [been] seen | 346 |
|
| 4 | [adv] [been] seen | 210 |
|
| 5 | often [be] seen | 43 |
|
| 6 | often [been] seen | 17 |
|
| 7 | often [been] see | 17 |
|
