| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] have [been] a | 1175 |
|
| 2 | [noun sg] have a central | 21 |
|
| 3 | have [been] a central | 18 |
|
| 4 | [noun sg] have [been] central | 11 |
|
