| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been [prep] a [noun sg] | 728 |
|
| 2 | taken [prep] a [noun sg] | 687 |
|
| 3 | been taken [prep] [noun sg] | 174 |
|
| 4 | been taken [prep] a | 77 |
|
