| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [been] widely used [prep] | 28 |
|
| 2 | [been] widely used [prep] | 28 |
|
| 3 | [been] widely [vb pp] for | 19 |
|
| 4 | [be] widely used for | 19 |
|
| 5 | [been] widely [verb] for | 19 |
|
| 6 | [been] [adv] used for | 12 |
|
| 7 | [been] [adv] used for | 12 |
|
| 8 | [been] widely use for | 7 |
|
| 9 | [been] widely used for | 7 |
|
| 10 | [been] widely used for | 7 |
|
