has been shown to affect has been shown to cause has been shown to decrease has been shown to have has been shown to help has been shown to improve has been shown to increase has been shown to play has been shown to produce has been shown to reduce has been shrinking has been shut has been sick has been sidelined has been sighted has been signed has been significant has been significantly has been significantly reduced has been silenced has been silent has been similar has been simplified has been singing has been singled out has been sitting has been slain has been slashed has been sleeping has been slightly has been slow has been slowing has been slowly has been small has been smoking has been so has been so far has been so good has been so hard has been so kind has been so long has been so much has been so much fun has been so successful has been so wonderful has been sober has been sold has been sold out has been solved has been some progress has been something has been somewhat has been sorely has been sorted has been sought has been spared has been speaking has been special has been specializing has been specially has been specially designed has been specifically has been spectacular has been speculated has been spelled has been spending has been spent has been spilled has been split has been spoiled has been spoken has been sponsored has been spotted has been spread has been spreading has been spying has been stabbed has been stabilized has been stable has been staged has been stagnant has been stalking has been stalled has been standardized has been standing has been started has been stated has been stationed has been staying has been steadily has been steadily growing has been steadily increasing has been steady has been stealing has been stepped up has been stolen has been stopped has been stored has been streamlined