The correct English grammar would be 'I should have run'.
It's 'must be run' because if it were to be 'must be ran' you would be talking in the past tense! -- another answer -- We don't have enough information for a definitive answer If the sentence refers to the present or the future then it is "must be run". If the sentence refers to the past then it is "must have been run" or "must have run". It would help to know the full sentence into which this phrase is to be placed.
Well, isn't that a lovely question! "Ran" is actually a verb, not an adverb. It's an action word that describes the movement of someone or something. Keep exploring the world of grammar and you'll discover all sorts of wonderful things!
'Fast' is the adverb, because it is describing the speed of the verb run(ning).
Quickly It modifies the verb "ran"
yes example: he ran is the sweetest way
Neither is correct.I should be I ran but I have run.
You could have run longer.The reason is:"Ran" is the simple past tense: "Yesterday I ran all the way home.""Run" is the past participle: "You should have run." "The race has been run."
No. It should be either "You have run a marathon" or "You ran a marathon".
past: ran past perfect: had run past progressive: was/were running past perfect progressive: had been running
The word is spelled run, just as you spelled it. I ran. You ran. He/she/it ran. I run. You run.
"Will be run": the verb "run" is its own past participle.
The past tense of ran is ran. The future is run. The present is running. Had Run, had ran.
The past tense of "run" is "ran."
"Is run" is correct. "Is ran" is not grammatically correct.
ran is past and run is present
That depends. "Ran out" is past tense, and "run out" is present tense. Yesterday, I ran out of sugar. I hope I don't run out of sugar.
I/You/We/They run. He/She/It runs.