| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] [vb pp] for | 3729 |
|
| 2 | [v-ing] [is] [vb pp] | 246 |
|
| 3 | [v-ing] [vb pp] for | 172 |
|
| 4 | [v-ing] [is] for | 8 |
|
