| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [v-ing] to be | 1111 |
|
| 2 | [v-ing] to be a | 1020 |
|
| 3 | is to be a | 204 |
|
| 4 | is [v-ing] to a | 76 |
|
