effort or efforts?

Which of the following sentences is correct?

1 Your time and effort is greatly appreciated

2 Your time and efforts are greatly appreciated

3 Your time and effort are greatly appreciated

Hi there, and welcome to UsingEnglish!

As far as your sentences are concerned, I'd opt of number 1...

Your time and effort is greatly appreciated

Click to expand...

plemaire said:

Which of the following sentences is correct?

1 Your time and effort is greatly appreciated

2 Your time and efforts are greatly appreciated

3 Your time and effort are greatly appreciated

Click to expand...

They are all grammatically correct. Numbers 1 and 3 would be the most common, since effort is usuially uncountable. I suspect most would use #1, because "time and effort" are often seen as one thing, but one could see them as separate things and use #3.