| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [vb pp] [to-vb] a [noun] | 426 |
|
| 2 | [vb pp] [to-vb] a [noun] for | 191 |
|
| 3 | is [vb pp] [to-vb] [noun] for | 78 |
|
| 4 | is [to-vb] a [noun] for | 38 |
|
| 5 | is [vb pp] a [noun] for | 8 |
|
