backspace的现在进行时为：backspacing...

...

backspace的第三人称单数（三单）为：backspaces...

backspace的现在完成时为：backspaced...

Experience tells us that Backspace does nothing of the sort.不过经验告诉我们,退格键不会那样.Press Backspace twice to remove the tab and the space.按两次Backspace删除制表符和空格.To erase, you must backspace.要想删除, 必须使用Backspace键....

backspace的音标：backspace的英式发音音标为：['bækspeɪs]backspace的美式发音音标为：['bækspeɪs]...

backspace的一般过去时为：backspaced...