| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [vb pp] [prep] [adj] | 5346 |
|
| 2 | it is [vb pp] [prep] | 4737 |
|
| 3 | it is [prep] [adj] | 423 |
|
| 4 | it is [vb pp] [adj] | 168 |
|
| 5 | it [vb pp] [prep] [adj] | 27 |
|
