| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could be [vb pp] a [adj] | 34 |
|
| 2 | could be [v-ing] a [adj] | 14 |
|
| 3 | could be called a [adj] | 8 |
|
| 4 | could be call a [adj] | 8 |
|
