English — Grammar: The Difference Between For and Since — 3rd Year Middle School — Algerian Curriculum

For vs Since

Both “for” and “since” are used with time expressions, but they have different meanings.

For

Used with a duration (length of time).
Examples: for two hours, for three years, for a week, for a long time

Since

Used with a specific point in time (starting point).
Examples: since Monday, since 2020, since 9 o’clock, since I was a child

Examples

• I have studied English for 3 years. (duration = 3 years)
• I have studied English since 2021. (starting point = 2021)
• She has been here for two hours.
• She has been here since 2 pm.

Exercises

1. Fill: I have lived here ___ (for/since) 2010.
2. Fill: He has slept ___ (for/since) eight hours.

Related Lessons:

• Present Perfect Tense (affirmative, negative, questions)
• Future Tense (will vs going to)

📍 دروس مشابهة:

• English — Grammar: Conjunctions (and, but, or, so, because) — 1st Year Middle School — Algerian Curriculum
• اللغة الإنجليزية — Tag Questions Formation and Use — الرابعة متوسط — المنهاج الجزائري
• English — Comparative and Superlative Adjectives — 2nd Year Middle School — Algerian Curriculum