| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] have been thinking of | 11 |
|
| 2 | [vb mod] have [been] thinking of | 11 |
|
| 3 | [vb mod] have be thinking of | 11 |
|
| 4 | [vb mod] have [be] thinking of | 10 |
|
| 5 | must have [be] thinking of | 5 |
|
