| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] [v-ing] to be | 2302 |
|
| 2 | [adj] [is] to be | 299 |
|
| 3 | [adj] [is] [v-ing] to | 281 |
|
| 4 | [adj] [v-ing] to be | 105 |
|
