1. I want my son to wear the same clothes as everyone else at the school.
2. I want my son to wear the same clothes as everyone else does at the school.
Q1) Are both sentences grammatically correct?
Q2) Do both sentences mean the same thing?
Q3) Can "does" be omitted from sentence 3?
My answers are yes.
My dictionary lists the first one only, but I'm not sure about 2.
fire1 1. 2. Q3) Can "does" be omitted from sentence 3?
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fire11. I want my son to wear the same clothes as everyone else at the school.2. I want my son to wear the same clothes as everyone else does at the school.Q1) Are both sentences grammatically correct?Q2) Do both sentences mean the same thing?Q3) Can "does" be omitted from sentence 3?
From an audible perspective, both sound correct to my ear. Grammatically,
fire1Q1) Are both sentences grammatically correct?
Yes.
fire1Q2) Do both sentences mean the same thing?
Yes, but in your question, "both" and "same" are redundant.
fire1Q3) Can "does" be omitted from sentence 3?
I don't see a sentence 3.