- Whatever Alice offers him, Fred eats.
- Whatever you like, you may take.
- Whichever wing succeeded first would wheel inwards and help the other.
Why the 3rd example does not have a comma after the starting subordinate clause (as in the first two)?
The only difference I could make out is that in the first two examples, the whatever clause is the complement (object) of the sentence and in the last one it is the subject.