おそらく

The word おそらく means "probably", and often occurs in a sentence alongside the words でしょう and だろう.

おそらく来年は、日本に行けるだろう。
I can probably go to Japan next year.

宗教の問題が解決しない限り、おそらくこの戦争は終わらないだろう。
If we don't resolve these religious problems, this war is probably not going to end.

今度、隣の土地に新しいビルが建つので、おそらくうるさくなるでしょう。
There's a new building being built on my neighbor's land soon, so it's probably going to get noisy.

まったく同じ絵を美術館で見たことがあるから、この絵はおそらく偽者でしょう。
I've seen that exact painting at an art museum before, so this one is probably a fake.