estar :: to be (temporarily)

nós estamos :: we’re (temporarily)

vocês estãdo :: you’re (temporarily, plural)

eles estãdo :: they’re (temporarily, masculine)

elas estãdo :: they’re (temporarily, feminine)

ser :: to be (permanently)

nós somos :: we're (permanently)

vocês são :: you’re (permanently, plural)

eles são :: they’re (temporarily, masculine)

elas são :: they’re (temporarily, feminine)