71. How about + (verb+ing)
613
72. What if + (subject + verb)
669
73. How much does it cost to + (verb)
619
74. How come + (subject + verb)
625
75. What are the chances of + (verb+ing)
682
76. There is something wrong with + (noun)
1514
77. Let's not + (verb)
579
78. Let's say that + (subject + verb)
591
79. There's no need to + (Present form of verb)
618
80. It takes + (time) + to + (verb)
573