Can/could

Question

I can do that too.I could do that too.What the difference?Is could the past tense of can?

Old Man Gordon · Accepted Answer

I like this question. It's really about nuance and subtle differences. In a very basic way, you can say that 'can' is stronger, based on actual facts. Could is based on opinion and theory.

By definition, can is referring to the actual ability. When I say this, it means it is possible for me to do something (either because of my ability or circumstances).

Could is the past tense of can, but in your sentence it is not a past tense verb. It is in the subjunctive mood. This means it is hypothetical, not actual. In your example, if someone makes a suggestion, and you respond "I could do that.", it means that it is a good suggestion. There may be some reason that you will not actually do it.

Watching a TV show of someone climbing a mountain, the phrase would mean "I could do that if I really wanted to." I'm not gong to, but if I had the time, the interest, and the money, then I might do that. If the same person builds a fire using sticks, without matches, and you have done that before, you can say "I can do that. (Would you like to see?)"

I hope that helps.

OMG

Can/could

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