| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] [adv] be thinking about | 14 |
|
| 2 | [vb mod] [adv] be think about | 8 |
|
| 3 | [vb mod] [not/n't] be think about | 6 |
|
| 4 | [vb mod] not be think about | 6 |
|
