SN4 ""

No	Pattern	Freq
1	[noun] [verb] if [pron] [vb mod]	350
2	[noun] [noun] if [pron] [vb mod]	214
3	[noun] [to-vb] if [pron] [vb mod]	182
4	[noun] see if [pron] [vb mod]	153
5	[noun] [conj] if [pron] [vb mod]	147
6	[noun] to see if [pron] [vb mod]	141
7	[noun] [adv] if [pron] [vb mod]	112
8	[noun] ask if [pron] [vb mod]	106
9	[noun] [noun sg] if [pron] [vb mod]	100
10	[noun] [adv] if [pron] [vb mod]	98
11	[noun] [coord] if [pron] [vb mod]	94
12	[noun] [vb past] if [pron] [vb mod]	83
13	[noun] [prep] if [pron] [vb mod]	81
14	[noun] [prep] if [pron] [vb mod]	81
15	[noun] as if [pron] [vb mod]	73
16	[noun] as if [pron] [vb mod]	73
17	[noun] [noun prp] if [pron] [vb mod]	71
18	[noun] and if [pron] [vb mod]	69
19	[noun] and if [pron] [vb mod]	69
20	[noun] asked if [pron] [vb mod]	53
21	[noun] [noun pl] if [pron] [vb mod]	39
22	[noun] that if [pron] [vb mod]	39
23	[noun] [that] if [pron] [vb mod]	39
24	[noun] that if [pron] [vb mod]	39
25	[noun] wonder if [pron] [vb mod]	33
26	[noun] [vb base] if [pron] [vb mod]	26
27	[noun] to ask if [pron] [vb mod]	26
28	[noun] [v-ing] if [pron] [vb mod]	26
29	[noun] even if [pron] [vb mod]	22
30	[noun] [vb -s] if [pron] [vb mod]	22