| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [v-ing] to | 14229 |
|
| 2 | be [v-ing] to | 14228 |
|
| 3 | been [verb] to | 7884 |
|
| 4 | been [v-ing] [prep] | 6841 |
|
| 5 | [been] [v-ing] to | 634 |
|
