| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb -s] [been] going on [prep] [det] | 8 |
|
| 2 | [vb -s] been go on [prep] [det] | 8 |
|
| 3 | [vb -s] [been] go on for [det] | 8 |
|
| 4 | has [been] go on [prep] [det] | 7 |
|
