| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [verb] since [art] | 139 |
|
| 2 | have been [vb pp] since [art] | 100 |
|
| 3 | have been known [prep] [art] | 49 |
|
| 4 | have been known [prep] [art] | 49 |
|
| 5 | [verb] been known since [art] | 6 |
|
| 6 | have [been] known since [art] | 6 |
|
| 7 | have [be] known since [art] | 6 |
|
| 8 | have be known since [art] | 6 |
|
| 9 | have been know since [art] | 6 |
|
| 10 | have been known since [art] | 6 |
|
