| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [be] [v-ing] to | 339 |
|
| 2 | 've [adv] [be] [v-ing] | 203 |
|
| 3 | 've [be] [v-ing] to | 106 |
|
| 4 | 've [adv] [be] to | 69 |
|
