He walk s to work and leave s his car at home. Mistakes in number are specially likely to occur when you are confused about which noun the verb agrees with. Sometimes this confusion occurs because there is a phrase between the noun and verb.
Trouble can also occur when the verb is in a modifying clause.
Win , the verb in the adjective clause, agrees in number with the noun player . Remember that adding an -s to a verb doesn't make it plural. The verbs make , do , let and verbs of the senses, such as see and hear , make the -s in verbs that follow them disappear.