No adequate dictionary of the entire English language exists untill the middle of the eighteenth century.

what correction should be made?

1)change the spelling of adequate to adequate
2)chnage exists to existed
3)insert a comma after exists
4)replace untill with since
5)change eighteenth century to 1700s

kayci, morgan, none, or whoever --

There is no need to keep changing names. When you post questions here.

Your previous questions have been answered. Now it's time for you to tell us what YOU THINK. Then someone will be able to comment.

i think its 4

I agree.

The correct correction to the sentence should be:

2) change "exists" to "existed"

Explanation:

The original sentence states that "No adequate dictionary of the entire English language exists untill the middle of the eighteenth century." However, the use of the present tense verb "exists" is incorrect because the sentence is referring to a time period in the past. The word "existed" should be used instead to indicate that a dictionary was not in existence until the middle of the eighteenth century.