| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [pron] have been [adj] | 124 |
|
| 2 | [prep] course [pron] have been | 46 |
|
| 3 | [prep] course [pron] have [adj] | 23 |
|
| 4 | course [pron] have been [adj] | 5 |
|
