So can start a conversation. "So, will you go to the movies with him tonight?" So can be used to explain severity. "We walked five miles today. I am so tired." "I want to go to back to Greece. I miss it so much."

SO and NEITHER are used to agree with statements. SO with affirmative (+) statements: I like dogs. So do I. NEITHER with negative (-) statements: I don't like dogs. Neither do I. Remember: the auxiliary in the response must agree with the verb tense in the original statement! For example: I AM happy. So AM I. Alex CAN'T swim. Neither CAN I. My sister WOULD love to go to Thailand. So WOULD I. I WILL not be angry. Neither WILL I. etc.