| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] has been [verb] on | 531 |
|
| 2 | [noun sg] has [been] [vb pp] on | 507 |
|
| 3 | work has [been] [verb] on | 53 |
|
| 4 | [noun sg] has [been] done on | 43 |
|
| 5 | [noun sg] has [been] do on | 43 |
|
| 6 | [noun sg] has [been] placed on | 38 |
|
| 7 | [noun sg] has [been] place on | 38 |
|
| 8 | [noun sg] has [been] focus on | 36 |
|
| 9 | emphasis has [been] [verb] on | 33 |
|
| 10 | [noun sg] has [been] focused on | 31 |
|
| 11 | attention has [been] [verb] on | 30 |
|
| 12 | [noun sg] has [been] base on | 28 |
|
| 13 | [noun sg] has [been] based on | 28 |
|
| 14 | [noun sg] has [been] [v-ing] on | 23 |
|
| 15 | [noun sg] has [been] made on | 21 |
|
| 16 | [noun sg] has [been] make on | 21 |
|
| 17 | [noun sg] has [been] put on | 19 |
|
| 18 | [noun sg] has [been] put on | 19 |
|
| 19 | [noun sg] has [been] spend on | 15 |
|
| 20 | [noun sg] has [been] spent on | 13 |
|
| 21 | research has [been] [verb] on | 13 |
|
| 22 | doubt has [been] [verb] on | 13 |
|
| 23 | [noun sg] has [been] cast on | 12 |
|
| 24 | [noun sg] has [been] cast on | 12 |
|
| 25 | [noun sg] has [been] concentrate on | 10 |
|
| 26 | [noun sg] has [been] build on | 9 |
|
| 27 | [noun sg] has [been] built on | 9 |
|
| 28 | [noun sg] has [been] undertake on | 8 |
|
| 29 | [noun sg] has [been] find on | 8 |
|
| 30 | [noun sg] has [been] use on | 8 |
|
