A B C D E F G H I J K L M N O P Q R S T U V W X Y ZBE is to GJ as CF is to (__)

The pattern here is based on the positions of the letters in the alphabet.

1. In the first pair, B is the 2nd letter of the alphabet and E is the 5th. The difference between them is 3 (5-2=3).

2. The second letter in the pair, G, is the 7th letter of the alphabet. If we add 3 to 7 (the difference we found in the first pair), we get 10, which corresponds to J, the second letter in the pair.

3. Applying the same logic to the second pair, C is the 3rd letter of the alphabet and F is the 6th. The difference between them is 3 (6-3=3).

4. If we add 3 to the position of F in the alphabet (6+3), we get 9. The 9th letter of the alphabet is I.

So, CF is to I.