| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] must have [be] [v-ing] | 186 |
|
| 2 | think [pron] have [be] [v-ing] | 71 |
|
| 3 | think [pron] must have [be] | 61 |
|
| 4 | think [pron] must [be] [v-ing] | 30 |
|
