| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [vb pp] for [det] purpose | 50 |
|
| 2 | be [verb] for [det] purpose | 50 |
|
| 3 | [be] [verb] for this purpose | 40 |
|
| 4 | [be] used for [det] purpose | 26 |
|
| 5 | [be] use for [det] purpose | 26 |
|
| 6 | [be] allocated for [det] purpose | 8 |
|
| 7 | [be] allocate for [det] purpose | 8 |
|
| 8 | [be] [verb] for that purpose | 7 |
|
