영어 문법 뭐가 맞는지 알려주실 분!!

Were the U.S Army Corps of Engineers not spending millions of dollars each year replenishing eroding beaches, the coastline would be changing even more rapidly. 

 

Were the U.S Army Corps of Engineers not spend millions of dollars each year replenishing eroding beaches, the coastline would be changing even more rapidly. 

 

둘 중에 뭐가 맞아?? not뒤에 spend 인지 spending 인지 잘 모르겠어 ㅠㅠ

[익인1]

2번째꺼 아닐까...?? 이거 가정법 도치같은뎅

[글쓴이]

헉 마자 가정법 도치!! 알려줘서 고마워❣️