common portion common position common positions common power common practice common practice to use common practices common prayer common premises common presentation common presenting common primary common principle common principles common priorities common priority common problem common problems common procedure common procedures common process common processes common procurement common procurement vocabulary common product common products common professional common program common programme common programming common project common projects common properties common property common prosperity common protocol common protocols common provisions common psychological common public common punishment common purpose common purposes common quality common question common question asked common questionnaire common questions common questions and answers common questions asked common questions i common questions regarding common radio common rail common range common ratio common raven common reaction common reactions common reason common reasons common reasons people common reasons why people common red common reed common reference common refrain common regional common regulations common regulatory common relationship common religion common religious common remedy common reply common reported common reporting common reporting format common representation common representative common request common requirement common requirements common research common resolution common resource common resources common respiratory common response common responses common responsibilities common responsibility common result common results common risk common risk factor common risks common road common room