<img class='emoticon' style='Width:19px;Height:19px;' data-delaysrc='https://uat-englishforward-forums-backend.s3.us-west-2.amazonaws.com/Emoticons/9.gif' src='https://uat-englishforward-forums-backend.s3.us-west-2.amazonaws.com/Emoticons/9.gif' alt='Emotion: crying'/><br/><br/>"Basal tears are always in your eyes to help keep our vision clear, protecting the eye’s surface." <br/><br/>why not "help keeping"? What kind of construction is this? <br/><br/>When do I use it? <br/><br/>Thank you very much in advance..