| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [been] [verb] | 9030 |
|
| 2 | have [been] [vb pp] | 7687 |
|
| 3 | [verb] [been] noticed | 44 |
|
| 4 | have [been] noticed | 44 |
|
| 5 | [vb infin] [been] noticed | 19 |
|
| 6 | have [been] notice | 19 |
|
| 7 | have [be] noticed | 19 |
|
