| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [be] think of | 240 |
|
| 2 | [vb mod] [be] think of | 240 |
|
| 3 | could [be] [verb] of | 165 |
|
| 4 | could [be] think [prep] | 16 |
|
| 5 | could [be] think of | 13 |
|
| 6 | could [be] think of | 13 |
|
