Picture Biggest tidal changes when Earth and Moon are closest and Earth, Moon and Sun are aligned at new or full moon.
(Earth and Moon; are; closest and Earth, Moon and Sun are aligned at new or full moon) (Earth, Moon and Sun; are aligned; at new or full moon)
Earth and Moon Earth, Moon and Sun
are are aligned
closest and Earth, Moon and Sun are aligned at new or full moon
at new or full moon