S hort answers are very common in spoken English. For example, when someone asks you a ‘yes/no’-question, you can give a short answer by using a pronoun with an auxiliary, modal, or the main verb ‘be’. You usually put ‘yes’ or ‘no’ before the short answer.
Note: A short answer such as ‘yes, I will’ is more polite or friendly than just ‘yes’ or than repeating all the words used in the question. People often repeat all the words in the question when they feel angry or impatient.
‘ Will you have finished by lunchtime?’ - ‘Yes, I will have finished by lunchtime.’
S ometimes a statement about one person also applies to another person. When this is the case, you can use a short answer with ‘so’ for positive statements, and with ‘neither’ or ‘nor’ for negative statements, using the same verb that was used in the statement.
Y ou use ‘so’, ‘neither’, or ‘nor’ with an auxiliary, modal, or the main verb ‘be’. The verb comes before the subject.