How to say if you would move over, there would be room for everyone. in Japanese
1)
席席(seki) (n) seat/location/place/position/postをを(wo) (prt) indicates direct object of action/indicates subject of causative expression/indicates an area traversed/indicates time over which action takes place/indicates point of departure or separation of action/indicates object of desire, like, hate,つめていただければno dictionary result, likely a conjigated verbno dictionary result, likely a conjigated verb、、(、) Japanese commaみんなみんな(minna) (adv,n) all/everyone/everybody/everythingがが(ga) (prt) indicates sentence subject/indicates possessive/but/however/still/and座れno dictionary result, likely a conjigated verbno dictionary result, likely a conjigated verbる(n) exileのです(exp) the expectation is that .../the reason is that .../the fact is that .../it is that ...がが(ga) (prt) indicates sentence subject/indicates possessive/but/however/still/and。。(。) Japanese period "."
丁寧語 (Polite form)Polite form (teineigo) convays a sense of politeness, used when speaking to strangers, people older than you, higher social status ect. Click for examples / more info
