| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [vb pp] [prep] | 70803 |
|
| 2 | [vb pp] [prep] [num] | 42284 |
|
| 3 | is [prep] [num] | 1235 |
|
| 4 | is [vb pp] [num] | 267 |
|
