SN4 ""

No	Pattern	Freq
1	the [noun] if they [verb]	238
2	the [noun] if they [vb base]	131
3	the [noun] if they [be]	117
4	the [noun] if they be	117
5	the [noun] if they [vb past]	107
6	the [noun] if they [am/are]	77
7	the [noun] if they are	64
8	the [noun] if they have	49
9	the [noun] if they were	40
10	the [noun] if they [was/were]	40
11	the [noun] if they [modal v]	32
12	the [noun] if they [vb mod]	32
13	the [noun] if they had	22
14	the [noun] if they do	21
15	the [noun] if they want	18
16	the [noun] if they have	18
17	the [noun] if they do	15
18	the [noun] if they 're	13
19	the [noun] if they can	13
20	the [noun] if they [adv]	12
21	the [noun] if they [adv]	12
22	the [noun] if they think	11
23	the [noun] if they can	10
24	the [noun] if they wish	10
25	the [noun] if they could	9
26	the [noun] if they wish	9
27	the [noun] if they want	9
28	the [noun] if they could	9
29	the [noun] if they wanted	9
30	the [noun] if they go	8