| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | are needed for [adj] [noun] | 25 |
|
| 2 | are needed for [adj] [noun pl] | 24 |
|
| 3 | are needed for [adj] [noun sg] | 16 |
|
| 4 | are needed for [det] [noun] | 11 |
|
| 5 | are needed for [adj] purposes | 8 |
|
| 6 | are needed for [adj] purpose | 8 |
|
| 7 | are needed for literary [noun] | 7 |
|
| 8 | are needed for literary [noun] | 7 |
|
| 9 | are needed for this [noun] | 5 |
|
| 10 | are needed for this [noun] | 5 |
|
