| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [ex0] have [been] problems | 16 |
|
| 2 | there have [been] problems | 16 |
|
| 3 | there have [been] problems | 16 |
|
| 4 | [pron] have [been] problems | 16 |
|
| 5 | have [been] [adj] problems | 7 |
|
| 6 | have [been] problems [prep] | 15 |
|
| 7 | have [been] problems [prep] | 15 |
|
| 8 | have [been] problems with | 8 |
|
| 9 | have [been] problems with | 8 |
|
