| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [vb pp] for | 3563 |
|
| 2 | [v-ing] is [vb pp] | 245 |
|
| 3 | [v-ing] [vb pp] for | 172 |
|
| 4 | [v-ing] is for | 8 |
|
