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Can vs Could
What’s the difference between can and could?
"Can" for present ability, "could" for past ability. "Can" suggests likelihood, "could" suggests possibility. "Can" for casual permission, "could" for formal permission.
Example of could
- I could win the Chicago Marathon if I train hard enough.
- Could you have someone carry my bag upstairs?
- I think we could outrun those wolves.
What's is the difference?
Can
vs
Could
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Many thanks
Using could in
a sentence
Using can in
a sentence
Using could?
Using can?
Use could if you’re describing someone’s ability in the past tense.
Consider could a realist when it comes to possibilities—something might happen, but it also might not.
Could is seen as more formal when asking for permission.
"Three instances for 'can' use: 1st is here, showing ability. Use for present ability. For likely events, use 'can' if chances are good. Note, 'can' is informal for seeking permission."
State whether your hypothesis is supported by your data or not.
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Example of can
- I can open that door for you.
- Can we pick a new restaurant for date night?
- You can pick whatever restaurant you like.
Restate your original hypothesis.
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Use exact data to support what you have just written.
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Apply error analysis: Think about what you found out in your research. Consider any improvements to your procedure.
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Offer explanations for why you think the reults of your experiment are what they are. Ask a new question — what do you want to do next?