Conjugation

Undo

défaire, annuler

Irregular verb.

  • Like do

    This verb conjugates like do: undid, undone.

In speech, the helping verbs shorten: I’m, he’s, we’re, I’ve, I’ll, I’d.

Newbie

Enough to talk about now, the past, and your plans, and to give instructions.

  1. Present simple

    Habits, facts, and how things usually are. To say no or ask, add do or does: I don't undo, he doesn't undo.

    1. I / you / we / they undo
    2. he / she / it undoes

  2. Present continuous

    What is happening now, and plans already arranged: we’re leaving tomorrow.

    1. I am undoing
    2. you / we / they are undoing
    3. he / she / it is undoing

  3. Past simple

    A finished action at a past time: yesterday, in 2020. To say no or ask, add did: I didn't undo.

    1. I / you / he / she / it / we / they undid

  4. Future with going to

    Plans and intentions, and what you can see coming: it’s going to rain.

    1. I am going to undo
    2. you / we / they are going to undo
    3. he / she / it is going to undo

  5. Imperative

    Orders, advice, and instructions. Let’s suggests doing it together. To say no: don't undo.

    1. (you) undo
    2. let's undo