Cool MateI guess so vs I suppose vs Maybe vs Perhaps
When to use each in English, with meaning, register, and examples.
I guess so
I suppose
Maybe
Perhaps
| I guess so | I suppose | Maybe | Perhaps | |
|---|---|---|---|---|
| Pronunciation | 🇬🇧 //aɪ ɡɛs səʊ//🇺🇸 //aɪ ɡɛs soʊ// | 🇬🇧 //aɪ səˈpəʊz//🇺🇸 //aɪ səˈpoʊz// | 🇬🇧 /["/ˈmeɪbi/"]/🇺🇸 /["/ˈmeɪbi/"]/ | 🇬🇧 /["/pəˈhæps//præps/"]/🇺🇸 /["/pərˈhæps/"]/ |
| Meaning | It's a way of saying you agree to something uncertain. | I think or believe | possibly; it's uncertain | maybe; it might be true |
| Example | Are you coming to the party tonight? I guess so. | I suppose we could try the new restaurant tonight. | Maybe we can go to the park later. | ‘Are you going to come?’ ‘Perhaps. I'll see how I feel.’ |
| Register | Informal | Neutral | Neutral | Neutral |
| How common | Top 3,000 (common) | Top 2,000 (common) | Top 2,000 (common) | Top 1,000 (very common) |
| CEFR level | - | - | A1 | A2 |
| Part of speech | adverb | adverb | ||
| Collocations | I guess so, I guess not, I guess that's true | I suppose so, I suppose it could be, I suppose that's true, I suppose you are right, I suppose you could say | maybe later, maybe not, maybe yes, maybe once, maybe tomorrow | perhaps we should, perhaps it is, perhaps he thought |
| Antonyms | I don't think so, I doubt it, I disagree, Definitely not | - | definitely, certainly | definitely, certainly |
| Common mistakes | Using in formal settings where more certainty is needed., Saying it too emphatically, making it sound definite., Omitting other responses that could clarify uncertainty. | Often confused with 'I guess' which is more casual., Misused in formal contexts where a stronger assertion is needed., Learners may omit 'I' and only say 'suppose'. | Confusing 'maybe' with 'may be' (two words) which has a different meaning., Overusing 'maybe' in formal writing instead of stronger alternatives., Using 'maybe' when more definitive language is expected. | 'Perhaps' can't be used as a noun., Confused with 'perchance', which is more archaic., Using 'perhaps' in very direct or commanding statements. |
| Usage notes | Use this when you're not fully certain but lean towards an agreement. Avoid in formal conversations. | Used to express uncertainty or to make a suggestion. More formal than simply saying 'I think'. | Use 'maybe' to express uncertainty or possibility. It's neutral and can be used in both spoken and written contexts, though avoid it in very formal situations. | Use 'perhaps' in formal writing or speech. It's less common in casual conversations, where 'maybe' is preferred. Avoid using it when being certain. |
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Frequently asked questions: I guess so vs I suppose vs Maybe vs Perhaps
What's the difference between I guess so, I suppose, Maybe, and Perhaps?
I guess so: It's a way of saying you agree to something uncertain. I suppose: I think or believe Maybe: possibly; it's uncertain Perhaps: maybe; it might be true
Which is more common: I guess so, I suppose, Maybe, and Perhaps?
Perhaps is the most common in everyday English.
Which is more advanced: I guess so, I suppose, Maybe, and Perhaps?
Perhaps is the highest level, at A2, on the CEFR scale.
Can you show an example of each?
I guess so: Are you coming to the party tonight? I guess so. I suppose: I suppose we could try the new restaurant tonight. Maybe: Maybe we can go to the park later. Perhaps: ‘Are you going to come?’ ‘Perhaps. I'll see how I feel.’
Can I use I guess so, I suppose, Maybe, and Perhaps interchangeably?
Not always. I guess so, I suppose, Maybe, and Perhaps are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.