SN4 ""

No	Pattern	Freq
1	[adj] if [pers pn] [verb] [adv]	461
2	[adj] if [pers pn] [verb] not	389
3	[adj] if [pers pn] [verb] [not/n't]	389
4	[adj] if [pers pn] [vb past] [adv]	303
5	[adj] if [pers pn] do [adv]	299
6	[adj] if [pers pn] [vb base] [adv]	286
7	[adj] if [pers pn] [verb] n't	270
8	[adj] if you [verb] [adv]	230
9	[adj] if [pers pn] [verb] [adv]	151
10	[adj] if [pers pn] do [adv]	149
11	[adj] if [pers pn] have [adv]	125
12	[adj] if [pers pn] [verb] not	119
13	[adj] if [pers pn] did [adv]	118
14	[adj] if [pers pn] [verb] [adv prt]	105
15	[adj] if [pers pn] had [adv]	92
16	[adj] if we [verb] [adv]	92
17	[det] if [pers pn] [verb] [adv]	86
18	[adj -er] if [pers pn] [verb] [adv]	82
19	[adj] if i [verb] [adv]	80
20	[adj] if he [verb] [adv]	74
21	[adj] if [pers pn] [vb -s] [adv]	73
22	[adj] if it [verb] [adv]	73
23	[adj] if they [verb] [adv]	67
24	good if [pers pn] [verb] [adv]	52
25	[adj] if she [verb] [adv]	45
26	better if [pers pn] [verb] [adv]	41
27	that if [pers pn] [verb] [adv]	35
28	that if [pers pn] [verb] [adv]	35
29	[adj] if [pers pn] does [adv]	32
30	[adj] if [pers pn] [verb] out	27