Use 'every time' to express a habitual action that consistently occurs in response to something. Every time the bell rings, the dog starts to bark.
Pro Tip 2/3
Conditional Events
'Every time' can indicate a condition that always results in a specific outcome. Every time it rains, the city experiences flooding.
Pro Tip 3/3
Prediction Emphasis
Use 'every time' to emphasize the certainty that an event will repeat in the future. Every time you enter the contest, you increase your chances of winning.