| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [vb pp] [prep] [adj] | 5346 |
|
| 2 | [vb pp] [prep] [be] [adj] | 4670 |
|
| 3 | is [vb pp] [prep] [be] | 3591 |
|
| 4 | is [prep] [be] [adj] | 424 |
|
