2 part complex adverbial phrases at the front of a sentence – English Grammar Profiler
A search in the NOW corpus for:
. _RR21 _RR22 ,
1 . IN ADDITION, 302494 2 . OF COURSE, 168082 3 . IN PARTICULAR, 59379 4 . IN SHORT, 33034 5 . AT PRESENT, 25916 6 . IN GENERAL, 25021 7 . EVEN SO, 23640 8 . ONCE AGAIN, 19163 9 . AT FIRST, 18534 10 . AS WELL, 12468 11 . AT LEAST, 12275 12 . AS USUAL, 7198 13 . NO DOUBT, 6135 14 . AT BEST, 4899 15 . IN PART, 3376 16 . AT WORST, 2785 17 . FOR SURE, 2701 18 . IN BRIEF, 2598 19 . AT LAST, 2271 20 . FOR ONCE, 2129 21 . ALL RIGHT, 1773 22 . AT MOST, 1116 23 . ONCE MORE, 898 24 . AS YET, 800
25 . PRIMA FACIE, 653