Add forms several common combinations. Some describe increasing something, while others describe calculation or extra items.
Use add to for increasing something, add in for including an extra element, add up for calculation or making sense, and add on for an extra item or charge. Add as is uncommon and usually appears only in technical contexts such as add as a contact.
These forms are not interchangeable. Choose the construction by meaning, not by which preposition appears most often.
Add to means increase or make something stronger.
Add in is common in cooking, editing, and conversation.
Add up can mean calculate a total or seem logical.
Add on refers to something extra attached to the main item.
Add as appears mainly in structures such as add someone as a contact or add a user as an administrator.
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.
Add up usually relates to totals or logic, not increasing something.
✕ The mistake added up our problems. ✓ The mistake added to our problems.Add as is limited and often needs a role noun after it.
✕ Please add as the document. ✓ Please add the document.Choose the expression that matches the intended meaning.
Paste the complete sentence below. Linguix checks the preposition together with grammar, spelling, punctuation, and style.
Add in usually means include something within a whole. Add on often refers to an extra feature, service, or charge.
Yes. It can mean find the total of numbers.
No. It is used in specific structures such as add someone as a contact or add a user as an admin.
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