| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] [to-vb] [noun] | 16532 |
|
| 2 | is [vb pp] [to-vb] | 11583 |
|
| 3 | is [to-vb] [noun] | 2738 |
|
| 4 | is [vb pp] [noun] | 1127 |
|
