[GingisK]

the inability to master simple rules of grammar and spelling seriously undermines your message.

MacArthur said, "I shall return". To be grammatically correct he should have said, "I will return".

Never less, he returned.

[paterfamilias]

“MacArthur said, “I shall return”. To be grammatically correct he should have said, “I will return”.”

MacArthur displayed a keen sense of etymology: “shall” comes from a Germanic/Old English word that, among other things, connotes “destined to”.

In this case, MacArthur said exactly what he meant.

Therefore, he was doubly correct: grammatically and historically.