| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] have [be] [v-ing] to | 294 |
|
| 2 | they have [be] [v-ing] [prep] | 256 |
|
| 3 | they have [be] [verb] to | 126 |
|
| 4 | they [verb] [be] [v-ing] to | 15 |
|
