| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be used for | 2640 |
|
| 2 | [be] used for | 2640 |
|
| 3 | [be] used for | 1207 |
|
| 4 | be used for | 1207 |
|
| 5 | [was/were] used for | 484 |
|
| 6 | [is] used for | 326 |
|
| 7 | is used for | 320 |
|
| 8 | was used for | 308 |
|
| 9 | been used for | 248 |
|
| 10 | [been] used for | 248 |
|
| 11 | [am/are] used for | 219 |
|
| 12 | are used for | 213 |
|
| 13 | were used for | 176 |
|
| 14 | being used for | 156 |
|
| 15 | [being] used for | 156 |
|
| 16 | 's used for | 6 |
|
| 17 | be used for | 5 |
|
