| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [vb pp] [det] [noun] | 369 |
|
| 2 | [vb pp] if [det] [noun] | 80 |
|
| 3 | is [vb pp] if [noun] | 28 |
|
| 4 | is [vb pp] if [det] | 10 |
|
| 5 | is if [det] [noun] | 5 |
|
