| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [adv] often seen | 15 |
|
| 2 | is [adv] often see | 8 |
|
| 3 | is [not/n't] often see | 7 |
|
| 4 | is not often see | 7 |
|
| 5 | is not often see | 7 |
|
