French Imperfect

The imperfect tense describes an action that was ongoing at the same time as other actions went on or occurred: J'attendais le bus quand j'ai vu Madeleine (I was waiting for the bus when I saw Madeleine). It is formed on the stem of the first person plural (nous = we) form of the present tense. All four conjugations add the same personal endings: (je -ais, tu -ais, il -ait, nous -ions, vous -iez, ils -aient).  

montrer (to show)
singular

je        montrais
tu        montrais
vous    montriez
il, elle, on montrait
nous    montrions
vous    montriez
ils, elles montraient