| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they could [adv] be [prep] the | 5 |
|
| 2 | they could be [verb] [prep] the | 42 |
|
| 3 | they could be [vb pp] [prep] the | 37 |
|
| 4 | they could be [adj] [prep] the | 7 |
|
| 5 | they could be [v-ing] [prep] the | 5 |
|
