are used mostly are used primarily are used properly are used solely are used synonymously are used to add are used to amplify are used to analyze are used to apply are used to assist are used to attach are used to build are used to calculate are used to carry are used to change are used to check are used to classify are used to collect are used to communicate are used to connect are used to control are used to convert are used to convey are used to correct are used to create are used to cut are used to decorate are used to describe are used to designate are used to detect are used to determine are used to develop are used to diagnose are used to display are used to do are used to doing are used to eating are used to enhance are used to ensure are used to evaluate are used to explain are used to express are used to extract are used to facilitate are used to finance are used to find are used to fix are used to get are used to guide are used to help are used to hold are used to identify are used to illustrate are used to implement are used to improve are used to increase are used to indicate are used to it are used to kill are used to maintain are used to make are used to manufacture are used to measure are used to minimize are used to move are used to obtain are used to pay are used to perform are used to predict are used to prepare are used to prevent are used to produce are used to promote are used to protect are used to provide are used to purchase are used to reduce are used to remove are used to represent are used to secure are used to seeing are used to select are used to separate are used to set are used to show are used to solve are used to store are used to study are used to support are used to test are used to transport are used to treat are used up are used when are used whenever are used widely are useful are useful because they are useful for preparing