Schematic light curve during an occultation with an exomoon orbiting its exoplanet with some different basic conditions: a1) exomoon occults after the exoplanet; a2) exomoon occults before the exoplanet; b1) observationally favourable case of large eccentricity increasing the plateau duration; b2) unfavourable case of large eccentricity decreases the plateau duration; c1) favourable case of large inclination (relative to the plane perpendicular to the line of sight); c2) unfavourable case of large inclination. The sizes of the objects are not to scale.