| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] had a [adj] history | 14 |
|
| 2 | have had a [adj] history | 14 |
|
| 3 | has had a [adj] history | 9 |
|
| 4 | [vb -s] had a [adj] history | 9 |
|
| 5 | [verb] had a long history | 5 |
|
| 6 | [verb] had a chequered history | 5 |
|
