| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could have a [adj] | 238 |
|
| 2 | [vb mod] have a significant | 58 |
|
| 3 | [modal v] have a significant | 58 |
|
| 4 | could [verb] a significant | 23 |
|
| 5 | could [vb infin] a significant | 23 |
|
| 6 | could have [art] significant | 7 |
|
| 7 | could have a significant | 7 |
|
| 8 | could have [art] significant | 7 |
|
| 9 | could have a significant | 7 |
|
| 10 | could have a significant | 7 |
|
