| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it have been [verb] for some | 17 |
|
| 2 | it have been [vb pp] for some | 16 |
|
| 3 | it have been known for [det] | 14 |
|
| 4 | it have been known for [adj] | 14 |
|
| 5 | it have [been] known for some | 9 |
|
| 6 | it have been known for some | 9 |
|
| 7 | it have [be] known for some | 9 |
|
| 8 | it have be known for some | 9 |
|
| 9 | it have been know for some | 9 |
|
| 10 | [pers pn] have been known for some | 9 |
|
| 11 | it have been known [prep] some | 9 |
|
| 12 | it have been known [prep] some | 9 |
|
| 13 | it have been known for some | 9 |
|
| 14 | it [verb] been known for some | 9 |
|
| 15 | [pron] have been known for some | 9 |
|
| 16 | it have been known for some | 9 |
|
