2646295 Tom stumbled and fell. CK 1 2261167 Tom stumbled backwards. CK 1 2796884 Don't stumble over the rock. sharptoothed 2541660 Tom stumbled and fell backward. CK 987258 She stumbled over a wheelbarrow. CM 2642066 Tom stumbled out into the street. CK 47414 The kid stumbled and fell to his knees. CK 3023347 Tom stumbled over something on the floor. CK 1128800 The group of clowns begin stumbling as they ran. cntrational 272181 In early times, inventions were often stumbled upon by accident. CM 329103 Yesterday I stumbled across a copy of my father's family register. fcbond 1887695 I stumbled across this problem when I was working on something else. CK