| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb -s] been [verb] on for [noun pl] | 16 |
|
| 2 | [vb -s] been go on for [noun pl] | 16 |
|
| 3 | [vb -s] been [v-ing] on for [noun pl] | 16 |
|
| 4 | [vb -s] been going on for [noun pl] | 15 |
|
| 5 | has been [verb] on for [noun pl] | 10 |
|
| 6 | [vb -s] been [verb] on for years | 9 |
|
| 7 | 's been [verb] on for [noun pl] | 6 |
|
