| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [vb pp] [prep] [noun] | 16453 |
|
| 2 | is [vb pp] by [noun] | 4480 |
|
| 3 | [vb pp] [prep] by [noun] | 763 |
|
| 4 | is [vb pp] [prep] by | 180 |
|
