Please help with this regex ASAP!

Hello,
I almost have the correct regex....this is the link:
ok so im not able to post links but if you google regex uk it is the fourth exercise that i need help on!

AND this is what i have: .*s.*h.*.i*[ .]*.

THANKS!!

You do know that Google shows different results to different people, right?
You can post links, just don't make them look like links. Or describe the problem.

regex.sketchengine.co.uk ok that is the link and i need help with exercise 4

No need for duplicate threads.

I don't see how your regex has anything to do with ends of sentences? First write a solution in English. How do you decide where the end of a sentence is?

Yah kind of confused. end of sentence..when there is a punctuation mark like a period.

This approach wouldn't work for all cases, but it looks promising to the positive and negative samples they list.

For the positive you would have something like "search for [.!?] that are optionally followed by [")']

For the negative: make sure there is white space following the [.!?][")']? and make sure there is [^,.?] within 3 characters of the match [.!?][")']?