| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] [v-ing] for | 1678 |
|
| 2 | [is] [v-ing] [n mass] | 284 |
|
| 3 | [v-ing] [n mass] for | 210 |
|
| 4 | [is] [n mass] for | 84 |
|
