| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] have been [adj] for | 240 |
|
| 2 | could have been [adj] [prep] | 49 |
|
| 3 | could have been [adj] [prep] | 49 |
|
| 4 | could have been [adj] for | 15 |
|
| 5 | could [vb infin] been [adj] for | 10 |
|
| 6 | could have been [adj] for | 10 |
|
| 7 | could have [be] [adj] for | 10 |
|
| 8 | could have [been] [adj] for | 10 |
|
| 9 | could have been [adj] for | 10 |
|
| 10 | could [verb] been [adj] for | 10 |
|
| 11 | could have be [adj] for | 10 |
|
