Singular or plural

AnonymousEffort or efforts?Thank you for all your effort or efforts.

You may use either without fear or favour. If the person did several distinct services, then you might choose the plural.

Mister Micawber AnonymousEffort or efforts?Thank you for all your effort or efforts.You may use either without fear or favour. If the person did several distinct services, then you might choose the plural.

Thanks. Then what does 'all' refer to?

Also, are these sentences correct:
Thanks for all your efforts to make this happen.
Thanks for all y

AnonymousThen what does 'all' refer to?

The totality: all my love, all my marbles.

AnonymousAre both possible?

Yes.

Mister Micawber AnonymousThen what does 'all' refer to?The totality: all my love, all my marbles.AnonymousAre both possible?Yes.

I see. So is it the totality for a single service (effort) or several services (efforts)?

Also, is the difference between the sentences is that the first one refers to before the actual event happening and the second refers

AnonymousSo is it the totality for a single service (effort) or several services (efforts)?

Of an uncountable 'service' or several instances of 'service'.

Anonymousis the difference between the sentences is that the first one refers to before the actual event happening and the second refers to after the ending or happening of the event?

Mister Micawber AnonymousSo is it the totality for a single service (effort) or several services (efforts)?Of an uncountable 'service' or several instances of 'service'.Anonymousis the difference between the sentences is that the first one refers to before the actual event happening and the second refers to after the ending or happening of the event?That is possible, yes,

Uncountable nouns: http://en.wikipedia.org/wiki/Mass_noun

Mister MicawberUncountable nouns: http://en.wikipedia.org/wiki/Mass_noun

But I don't get what all refers to? Totality of what, what is the uncountable noun that it is referring to when using 'effort' and 'efforts'? Does it change with 'effort or efforts'?

AnonymousDoes it change with 'effort or efforts'?

Yes. 'Effort' is either an uncountable quality or a single instance of that quality.

Mister Micawber AnonymousDoes it change with 'effort or efforts'?Yes. 'Effort' is either an uncountable quality or a single instance of that quality.

Thanks. But it is really hard to understand what that means. Could you clarify with examples please? And which one is the uncountable, is it the 'effort'?