I belong to the Tuesday night Bowling league.
Half a league more, and we'll win the day!
In baseball, there is no Muslim league.
A sentence to say in one sentence is to say a sentence in one sentence! It is quite easy to say a sentence in one sentence if that is all you have to say. "The cat with brown hair, hair of brown has the cat" is a sentence to say in one sentence. To say in one sentence the reasons behind the onset of World War Two does not do the subject any justice at all.
The Iroquois League was a very powerful confederation.
Example sentence - I want to attend an Ivy League university.
I play in the football leauge
There were no regulations for the league yet.
In Baseball, there is no Muslim league.
Yes Major League Baseball because it's a subject
I'm certain that my 'friend' is in league with the car mechanic. It won't take me long to cross this league that separates us.
There were no regulations for the league yet.
"I am a pentenial member of this league"
No because it is not specific it wouldn't be capitalized because you can say. I ate a cat. What type of specific cat? The name of the cat should be capitalized!