What is the difference between "I run" and "I do run"?

Question

Sometimes I read sentences like "I do run...", "I do love.." or "I do write..". What is the difference to "I run..", "I love..." or "I write..."?

Is the using of "do" in this cases a way to make the verb more important, like "I DO(!) love"?

Does anyone else have an "I met her in the morning and my heart stood still" earworm now? (After all, there's a precedent for using that song with English learners... ;^) — J.R., Apr 29 '13 at 21:53
Possible duplicate of http://english.stackexchange.com/questions/118683/difference-between-did-verb-and-just-verbed — Matt, Jul 12 '13 at 00:02

score 5 · Accepted Answer · answered Apr 29 '13 at 18:25

'I do run, 'I do write' etc. add emphasis to the expression, for e.g.

saying

I run in the morning. (normal activity)

while saying

I do run in the morning.

It could be like this,

Person 1: I have never seen you run in the morning. Do you ever run?

Person 2: Yes I do run in the morning, it is just that I run in some other region/ park.

1 Answers1