| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [vb pp] for [noun sg] | 145 |
|
| 2 | have been [v-ing] for [noun sg] | 14 |
|
| 3 | have been selected for [noun sg] | 10 |
|
| 4 | have been select for [noun sg] | 10 |
|
| 5 | have been used for [noun sg] | 9 |
|
| 6 | have been use for [noun sg] | 9 |
|
| 7 | have been develop for [noun sg] | 7 |
|
| 8 | have been developed for [noun sg] | 7 |
|
| 9 | have been report for [noun sg] | 5 |
|
| 10 | have been [verb] for use | 5 |
|
