Если в скобках написан тип сондишинала, то так:
if you can changed your app. what would you changed?
If you you watched TV tonight, what will you watch?
if you went out tonight, where will you go?
if you could live in..., where would you live?
if you had a lot of..., what could you buy?
if you learnt to speak ..., how will you use the language?