关于动词的第三人称单数、现在分词和过去式

spend——spends,spending,spent
cook——cooks,cooking,cooked
sit-——sits,siting,sat
enjoy——enjoys,enjoying,enjoyed
ask——asks,asking,asked
talk——talks,talking,talked
want——wants,wanting,wanted
carry——carries,carrying,carried
visit——visits,visiting,visited
decide——decides,deciding,decided
take——takes,taking,took
lose——loses,losing,lost
crowd——crowds,crowding,crowded
relax——relaxes,relaxing,relaxed