| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [been] used | 1738 |
|
| 2 | [verb] been used | 1738 |
|
| 3 | [vb -s] [been] used | 674 |
|
| 4 | has [been] used | 649 |
|
| 5 | [vb base] [been] used | 498 |
|
| 6 | have [been] used | 482 |
|
| 7 | [vb past] [been] used | 310 |
|
| 8 | had [been] used | 304 |
|
| 9 | [vb infin] [been] used | 190 |
|
| 10 | have [been] used | 190 |
|
| 11 | [to-vb] [been] used | 51 |
|
| 12 | to have [been] used | 51 |
|
| 13 | 's [been] used | 25 |
|
| 14 | 've [been] used | 16 |
|
| 15 | [v-ing] [been] used | 15 |
|
| 16 | having [been] used | 15 |
|
| 17 | 'd [been] used | 6 |
|
