Two children with chocolate around their mouths are pulling funny faces.
Twee kinderen met chocolade om hun mond trekken grappige gezichten.
Two children are eating chocolate.
Twee kinderen eten chocolade.
Just because two children have chocolate around their mouths does not mean they are currently eating the chocolate. They may have eaten the chocolate earlier.
Omdat twee kinderen chocola om hun mond hebben, betekent dat nog niet dat ze de chocolade eten.