Question

Which of these is not acceptable in a formal letter ?

Can not

Do not

I am

Wouldn’t​

Answer 1

Among the given options, the one which is not acceptable in a formal letter is "Wouldn't".

• "wouldn't" is a contraction.
• A contraction is made by combining two words into one separate word.
• Some examples of contractions are can't, didn't, shouldn't, I'm, etc.
• The use of contraction in a formal letter is considered inappropriate and inapplicable.
• Therefore one must always use full forms or the two words which are a part of the contracted word.