The past tense of lead is led — three letters, no a: "He led the negotiations last year." Lead is only the present tense ("she leads the department") or a noun (the metal, a leash, first place). If the action already happened, it is always led.
Why this one catches everybody
English has a trap here that no other verb quite matches. The metal lead — the heavy grey one in old pipes — is pronounced exactly like led. So the spelling l-e-a-d is genuinely attached to the sound "led" somewhere in your memory, and the hand reaches for it when you write a past tense.
Compare it with read, where present and past really are spelled the same: I read the report yesterday. Lead does not work that way. Its past tense has its own spelling.
The forms
- Present: lead (rhymes with need) — I lead a small team. They lead the market.
- Third person: leads — She leads the Friday session.
- Past and past participle: led — He led the walk. She has led four expeditions.
- -ing form: leading.
The test
Ask whether the action is finished. If it is, spell it led — no exceptions, no edge cases. A second check: swap in another irregular verb like ran. If ran fits, you need led: "he ran the meeting" / "he led the meeting". If run fits, you need lead: "he can run the meeting" / "he can lead the meeting".
The auxiliary rule catches the rest: after has, have, had, was or were, it is always led — the inquiry was led by a retired judge.
Lead as a noun
Several separate nouns share the spelling, and none of them is a past tense:
- The metal, pronounced "led": lead piping, lead paint, leaded windows.
- First place: Norway took the lead in the final lap.
- A dog's leash: Keep him on the lead near the road.
- A clue: The police are following up a new lead.
- The main role or performer: She played the lead.
- A sales prospect: The campaign generated forty leads.
Be honest about how common the error is
"Lead" used as a past tense turns up constantly, including in professionally edited copy — CVs and LinkedIn profiles are especially thick with "lead a team of twelve". A spellchecker will never flag it, because lead is a real word. It is worth a targeted search before you send anything where the wording matters.
Misled, not mislead
The same trap catches the compound: the past of mislead is misled. The advert misled customers — not "mislead".
