| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] have been think about | 5 |
|
| 2 | [vb mod] have [be] thinking about | 5 |
|
| 3 | [vb mod] have [been] think about | 5 |
|
| 4 | [vb mod] have be think about | 5 |
|
| 5 | [vb mod] have [be] think about | 5 |
|
