Since, For, Always, Ordinal Numbers, and Superlative.

Since.

1.- He has lived in Cananea since 2000.
2.- I have bought my shoes since 2010.

For.

1.- She has eaten vegetables for 3 months.
2.- We have gone to the library for 1 year.

Always.

1.- I´ve always visited my grandmather on Saturdays.
2.- I´ve always wanted to travel to Venice.

Ordinal Numbers.

1.- This is the second time I 've seen that movie.
2.- This is the first time I've heard about this book.

Superlative.

1.- This picture is the best I've taken.
2.- This is the cutest dog I've ever seen.