Use in effect when something is already operating or valid. Use into effect after verbs such as come, put, or bring to describe a change to an active state.
In effect means active, operating, or legally valid. Into effect is used after verbs of change such as come into effect or put into effect. The two phrases are not interchangeable.
These forms are not interchangeable. Choose the construction by meaning, not by which preposition appears most often.
Use in effect to describe something that is currently operating or legally valid.
Come into effect means become active or officially start.
Put into effect means make a plan, law, or decision active.
The same subject can take different constructions because each sentence answers a different question.
Some combinations appear in real text but do not mean what learners often assume.
After come, English normally uses into effect to show change to an active state.
✕ The law came in effect yesterday. ✓ The law came into effect yesterday.Into effect usually follows verbs such as come, bring, put, or go.
✕ The policy is into effect now. ✓ The policy is in effect now.Effect is usually a noun. Affect is usually a verb.
✕ The weather will effect attendance. ✓ The weather will affect attendance.Choose the expression that matches the intended meaning.
Paste the complete sentence below. Linguix checks the preposition together with grammar, spelling, punctuation, and style.
In standard English, come into effect is the usual expression.
In some contexts, in effect can also mean practically or essentially, as in In effect, the project was cancelled.
Usually no. It normally follows verbs such as come, bring, go, or put.
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