| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has be [verb] since | 146 |
|
| 2 | has be know [prep] | 81 |
|
| 3 | have be know since | 10 |
|
| 4 | [verb] be know since | 10 |
|
| 5 | [vb -s] be know since | 7 |
|
| 6 | has [be] know since | 7 |
|
