приставки    корни     суффиксы    оканчания

1)давал                       -               дав            а;л                  -   

2)лечил                       -               леч            и;л                  -       

3)ухаживали               -              ухаж         ив;а;л               и   

4)строили                   -               стро           и;л                  и

5)берегли                   -              берег            л                   и

6) исчезла                  -              исчез            л                   а               

7)пропали                  -               проп           а;л                  и

8)случилось               -               случ         и;л;ось              -

9)перестали            пере            ста              л                   и