| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [been] [verb] for this | 93 |
|
| 2 | [been] used for [adj] | 80 |
|
| 3 | [be] used for this | 72 |
|
| 4 | [been] [vb pp] for this | 62 |
|
| 5 | [been] used [prep] this | 15 |
|
| 6 | [been] use for this | 7 |
|
