| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [vb pp] a major problem | 7 |
|
| 2 | [verb] [vb pp] a major problem | 7 |
|
| 3 | [vb pp] a major problem [prep] | 7 |
|
| 4 | [vb pp] a major problem [prep] | 7 |
|
