| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has been a member [prep] [art] | 37 |
|
| 2 | has [been] a member [prep] [art] | 37 |
|
| 3 | has [been] a member of [art] | 36 |
|
| 4 | has [been] a member [prep] the | 35 |
|
