SN4 ""

No	Pattern	Freq
1	once you have [verb]	725
2	once you have [vb pp]	722
3	once you 've [verb]	360
4	once you have [verb]	337
5	once you have get	105
6	once you have got	104
7	once you have do	42
8	once you have done	42
9	once you have decide	34
10	once you have decided	34
11	once you have make	29
12	once you have made	28
13	once you have established	20
14	once you have establish	20
15	once you have found	19
16	once you have find	19
17	once you have choose	17
18	once you have chosen	17
19	once you 'd [verb]	16
20	once you have had	15
21	once you have have	15
22	once you have seen	14
23	once you have see	14
24	once you have start	14
25	once you have started	13
26	once you had [verb]	12
27	once you have work	12
28	once you have worked	12
29	once you have mastered	11
30	once you have master	11