No | Pattern | Freq | Relations |
---|---|---|---|
1 | [modal v] be useful for [adj] | 12 | |
2 | [vb mod] be useful for [adj] | 12 | |
3 | be [adv] useful for [adj] | 8 | |
4 | be [adv] useful for [adj] | 8 | |
5 | be useful for [adj] [noun] | 18 | |
6 | be useful for [adj] [noun pl] | 12 | |
7 | be useful for [adj] [noun sg] | 6 |