| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | think [pron] [modal v] have [be] [v-ing] | 21 |
|
| 2 | think [pron] must have [be] [verb] | 19 |
|
| 3 | [verb] [pron] must have [be] [v-ing] | 18 |
|
| 4 | think [pron] must [verb] [be] [v-ing] | 8 |
|
