| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [be] used for [adj] purposes | 21 |
|
| 2 | [noun] be used [prep] [adj] purposes | 21 |
|
| 3 | [noun] [be] used [prep] [adj] purposes | 16 |
|
| 4 | [noun pl] [be] used [prep] [adj] purposes | 14 |
|
| 5 | [noun] are used [prep] [adj] purposes | 9 |
|
| 6 | [noun] [am/are] used [prep] [adj] purposes | 9 |
|
| 7 | [noun] [was/were] used [prep] [adj] purposes | 7 |
|
| 8 | [noun] was used [prep] [adj] purposes | 5 |
|
