| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [vb pp] in | 12193 |
|
| 2 | is [vb pp] [is] | 697 |
|
| 3 | [vb pp] [is] in | 68 |
|
| 4 | is [is] in | 9 |
|
