SN4 ""

No	Pattern	Freq
1	an [noun] that [modal v]	314
2	an [noun] that [vb mod]	314
3	an [noun sg] that [modal v]	312
4	an [noun] that would	83
5	an [noun] that would	83
6	an [noun] that will	65
7	an [noun] that will	63
8	an [noun] that could	51
9	an [noun] that could	51
10	an [noun] that can	49
11	an [noun] that can	48
12	an [noun] that might	21
13	an [noun] that might	21
14	an [noun] that may	20
15	an [noun] that may	20
16	an idea that [modal v]	13
17	an [noun] that should	13
18	an idea that [modal v]	13
19	an [noun] that should	13
20	an [noun] that must	10
21	an [noun] that must	10
22	an approach that [modal v]	9
23	an approach that [modal v]	9
24	an issue that [modal v]	9
25	an issue that [modal v]	9
26	an activity that [modal v]	8
27	an activity that [modal v]	8
28	an arrangement that [modal v]	7
29	an arrangement that [modal v]	7
30	an argument that [modal v]	6