Are these sentences correct in american English?<br/><br/>1)I would have said that if you haven't. Do we put "did" insread of "have"?<br/><br/>2)That is what happens to me we I try to fix it. Do we need the "is"?<br/><br/>Qestion:<br/><br/>The verb after have always has to be in the third tense,right?<br/><br/>Thanks <img class='emoticon' style='Width:19px;Height:19px;' data-delaysrc='https://uat-englishforward-forums-backend.s3.us-west-2.amazonaws.com/Emoticons/1.gif' src='https://uat-englishforward-forums-backend.s3.us-west-2.amazonaws.com/Emoticons/1.gif' alt='Emotion: smile'/>