SN4 ""

No	Pattern	Freq
1	[adv] if [pers pn] [vb mod]	1235
2	[adv] if [pers pn] [vb mod]	1110
3	[adv] if you [vb mod]	461
4	[adv] if [pers pn] can	455
5	[adv] if [pers pn] could	321
6	even if [pers pn] [vb mod]	282
7	even if [pers pn] [vb mod]	282
8	so if [pers pn] [vb mod]	230
9	so if [pers pn] [vb mod]	230
10	[adv] if i [vb mod]	215
11	[adv] if we [vb mod]	176
12	[adv] if they [vb mod]	136
13	[adv] if [pers pn] 'd	122
14	[adv] if [pers pn] ca	104
15	[adv] if it [vb mod]	94
16	[adv] if he [vb mod]	91
17	[adv prt] if [pers pn] [vb mod]	90
18	now if [pers pn] [vb mod]	84
19	now if [pers pn] [vb mod]	84
20	well if [pers pn] [vb mod]	82
21	[adv] if [pers pn] would	78
22	well if [pers pn] [vb mod]	77
23	[adv] if she [vb mod]	61
24	only if [pers pn] [vb mod]	48
25	only if [pers pn] [vb mod]	48
26	[adv] if [pers pn] may	37
27	out if [pers pn] [vb mod]	37
28	out if [pers pn] [vb mod]	37
29	not if [pers pn] [vb mod]	34
30	[not/n't] if [pers pn] [vb mod]	34