| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been used [prep] [det] [noun pl] | 34 |
|
| 2 | has been used [prep] [det] [noun] | 27 |
|
| 3 | have been used for [det] [noun] | 21 |
|
| 4 | have been used [prep] [det] [noun sg] | 20 |
|
| 5 | have been used in [det] [noun] | 18 |
|
| 6 | have been used [prep] many [noun] | 17 |
|
| 7 | have been used [prep] [det] [noun] | 16 |
|
| 8 | have been used [prep] some [noun] | 14 |
|
| 9 | have been used [prep] [det] year | 12 |
|
| 10 | have been used [prep] [det] years | 12 |
|
| 11 | have been used [prep] this [noun] | 9 |
|
| 12 | had been used [prep] [det] [noun] | 8 |
|
| 13 | have been used by [det] [noun] | 7 |
|
