| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [coord] it is [vb pp] | 950 |
|
| 2 | it is often [vb pp] | 362 |
|
| 3 | [coord] it is often | 87 |
|
| 4 | [coord] is often [vb pp] | 51 |
|
