| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] be [verb] for this purpose | 31 |
|
| 2 | [modal v] be [vb pp] for this purpose | 31 |
|
| 3 | [modal v] be used for [adj] purpose | 17 |
|
| 4 | [modal v] be used for this [noun] | 17 |
|
| 5 | [modal v] be used for this [noun sg] | 17 |
|
| 6 | [modal v] be used for this purpose | 13 |
|
| 7 | [modal v] be use for this purpose | 13 |
|
| 8 | [modal v] be used [prep] this purpose | 13 |
|
| 9 | [modal v] be used for this purpose | 13 |
|
| 10 | [modal v] [be] used for this purpose | 13 |
|
| 11 | [modal v] be used [prep] this purpose | 13 |
|
