| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [adv] think [prep] | 187 |
|
| 2 | [adv] think [prep] a | 113 |
|
| 3 | could think [prep] a | 19 |
|
| 4 | could [adv] [prep] a | 8 |
|
