Is it 'fit with' or 'fitted with'? In:

A stand fitted with a protractor

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    Collins dictionary: In American English the form fit is used in the present tense and sometimes also as the past tense and past participle of the verb. That's to say, some people align fit with irregular verbs like hit, where He hit [Past] you first, so you hit [Present] him now. But most people treat to fit as a regular verb today, with past tense fitted. Commented Oct 24, 2023 at 13:39
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    There's a lot of uncertainty around ??IT verbs - all of shit, shat, shitted are used as past tenses, for example, and few people really want to get too deeply involved in which one of those is the "right, proper, correct" version! (But from my "descriptive linguistics" perspective, they're all fine! :) Commented Oct 24, 2023 at 13:47
  • principle parts: fit, fit, fitted.
    – Lambie
    Commented Oct 24, 2023 at 16:14

2 Answers 2


We use fitted with.

Collins Dictionary has an example similar to your question.

  1. ADJECTIVE [verb-link ADJECTIVE with noun, ADJECTIVE noun] If a room is fitted with objects, those objects are in the room and are normally fixed in place.

Bedrooms are fitted with alarm pull cords to alert the manager in an emergency.

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    Good answer, btw We can simply say:- a fitted protractor.
    – Sam
    Commented Oct 24, 2023 at 16:02
  • @Sam, or can it be 'a fit protractor', LOL? Commented Nov 5, 2023 at 19:58

It means a stand that is or has been fitted (hence the past participle fitted) with a protractor. Here be fitted with means possess as an attachment, layer, adornment, etc.

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