Native speakers rarely repeat themselves. Instead, they leave words out (ellipsis) or swap in a short word like so, not, do, one or ones (substitution). These patterns make your English sound natural and help you follow fast American conversation.
The pattern
Is the store open? I think so.
Will it rain? I hope not.
She said she'd call, and she did.
01So and not
After think, guess, hope, suppose, expect and be afraid, use so for a positive idea and not for a negative one. With think, Americans say I don't think so; "I think not" sounds formal or sarcastic. With hope and be afraid, always use not: "I hope not," never "I don't hope so."
| Verb | Positive | Negative |
|---|---|---|
| think | I think so. | I don't think so. |
| guess | I guess so. | I guess not. |
| hope | I hope so. | I hope not. |
| be afraid | I'm afraid so. | I'm afraid not. |
| suppose | I suppose so. | I don't suppose so. / I suppose not. |
02Keep the auxiliary, drop the rest
Repeat only the auxiliary or modal: "I haven't finished, but Sam has." "She can't come, but I can." If there is no auxiliary, use do, does or did. This also gives you short answers ("Yes, I do.") and replies like So do I and Neither do I. Americans also say Me too, Me neither and, casually, Me either. In formal writing, do so replaces a whole action: "The client asked for changes, and we did so the same day."
03One and ones
Use one or ones to avoid repeating a countable noun: "I need a charger. Do you have one?" "The blue ones are cheaper." Don't use one with uncountable nouns like advice or furniture. Say "Do you have any?" instead.
- My laptop died, so I bought a new one.
- Which shoes? The ones by the door.
- I'd like the large one, please.
04Dropping words in casual speech
In relaxed American speech, people drop words at the start of questions and statements: "(Do you) want some coffee?" "(Have you) been here long?" "(That) sounds good." Keep a lone to when the verb is understood: "You can leave early if you want to." This is fine in conversation and texts, but write full sentences in emails.
05Common mistakes
Is she coming? I don't hope so.
Is she coming? I hope not.
With hope, the negative short form is I hope not.
Is the meeting still on? I think yes.
Is the meeting still on? I think so.
After think, use so, not yes.
I lost my umbrella, so I bought a new.
I lost my umbrella, so I bought a new one.
An adjective needs a noun after it, so add one.
I haven't seen the movie, but my wife has seen.
I haven't seen the movie, but my wife has.
Keep only the auxiliary, or repeat the whole verb phrase with its object.