| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [vb pp] [prep] | 4737 |
|
| 2 | but it is [vb pp] | 334 |
|
| 3 | but it is [prep] | 315 |
|
| 4 | but is [vb pp] [prep] | 222 |
|
