| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [v-ing] [art] [noun sg] | 1186 |
|
| 2 | might have been [art] [noun sg] | 190 |
|
| 3 | might have been [v-ing] [art] | 16 |
|
| 4 | might have been [v-ing] [noun sg] | 5 |
|
