I used to vs We used to

English as a Second Language English Vocabulary, Grammar and Idioms
1

When do i need to say

I used to…
We used to…

2

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This phrase means a former habit or practice: I used to go skiing every weekend when I lived in Switzerland; I used to smoke many years ago; we used to send Xmas cards to all our friends, but now we send almost none.
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3

This means it is not a past tense form.

4

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Why do you not think so?

I used to go skiing every weekend when I lived in Switzerland; I used to smoke many years ago; we used to send Xmas cards to all our friends, but now we send almost none.
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