1) Can she read the book?<br/><br/> Yeas, she can.<br/><br/>2) Can she reading the book?<br/><br/> Yes, she can reading the book.<br/><br/>3) Should I write faster?<br/><br/> No, you should not write faster.<br/><br/> Yes, you should write faster.<br/><br/>4) Should I writing faster?<br/><br/> No, you should not writing faster.<br/><br/> Yes, you should writing faster.<br/><br/>It is incorrect to add "ing" to the verb after the helping verb except if it is "is, am, are, were, was", right?