| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] a chequered history | 12 |
|
| 2 | have a chequered history | 9 |
|
| 3 | [vb pp] a chequered history | 8 |
|
| 4 | had a chequered history | 5 |
|
