| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] have been [verb] since | 272 |
|
| 2 | [noun] have been [verb] [num] | 192 |
|
| 3 | have been [verb] since [num] | 168 |
|
| 4 | [noun] have [verb] since [num] | 119 |
|
