Change the sentence - put the verb into present, past, future simple, make it positive and negative. we always use our mobile phones.

Positive:
Present - We always use our mobile phones
Past - We always used our mobile phones
Future - We will always use our mobile phones

Negative:
Present - we don't always use our mobile phones
Past - We didn't always use our mobile phones
Fututre - We won't always use our mobile phones