| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] [vb pp] that | 4223 |
|
| 2 | [is] often [vb pp] | 1895 |
|
| 3 | often [vb pp] that | 249 |
|
| 4 | [is] often that | 10 |
|
