| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [verb] from a | 196 |
|
| 2 | have been obtain [prep] a | 20 |
|
| 3 | have been obtain from [art] | 20 |
|
| 4 | have been obtain from [art] | 20 |
|
| 5 | have [been] obtain from a | 5 |
|
| 6 | have [be] obtain from a | 5 |
|
| 7 | have been obtain from a | 5 |
|
| 8 | have be obtain from a | 5 |
|
| 9 | [verb] been obtain from a | 5 |
|
