| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] have been [vb pp] since [num] | 69 |
|
| 2 | [noun sg] have been [verb] since [num] | 51 |
|
| 3 | [noun] has been [verb] since [num] | 36 |
|
| 4 | [noun pl] have been [verb] since [num] | 36 |
|
| 5 | [noun] have been [verb] since [num] | 35 |
|
| 6 | [noun] have been [v-ing] since [num] | 23 |
|
| 7 | [noun] had been [verb] since [num] | 19 |
|
| 8 | [noun] have been [verb] since 1987 | 7 |
|
| 9 | [noun] have been [verb] since 1979 | 7 |
|
| 10 | [noun] have been run since [num] | 6 |
|
| 11 | [noun] have been running since [num] | 5 |
|
| 12 | company have been [verb] since [num] | 5 |
|
| 13 | [noun] have been [verb] since 1985 | 5 |
|
| 14 | [noun prp] have been [verb] since [num] | 5 |
|
| 15 | company have been [verb] since [num] | 5 |
|
