| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has been used [adv] [prep] | 44 |
|
| 2 | has been used [adv] in | 19 |
|
| 3 | has been used [adv] in | 19 |
|
| 4 | has been used successfully [prep] | 11 |
|
| 5 | has been used [adv] for | 9 |
|
| 6 | has been used [adv] for | 9 |
|
| 7 | has been used [adv] by | 8 |
|
| 8 | has been used [adv] by | 8 |
|
| 9 | has been used extensively [prep] | 5 |
|
