tenses - Aspect (simple, perfect and progressive): What are the differences?


Could you please explain to me the differences between the simple, progressive and perfect aspects.


"Simple aspect" means completed action (action starts and finishes) but I don't really understand the fine details.


For example, with these sentences:



It usually rains in the fall.
He smokes 15 cigarettes a day.
I slept for a long time yesterday.



Here's what I understand: if I didn't complete sleeping I should use "I was sleeping". If it doesn't stop raining we can't say "it is finished". Is that correct?


For continuous aspect, duration is an important factor – but how?


For example:



She is wearing a jacket.



Normally "to wear" action is completed but we can use here present continuous aspect.


Another example:



She has been wearing the same jacket for 3 days.



and why can't I use continuous aspect here?



I have cleaned my room.



It means that my room is clean now. Action is finished but why can't I say "I have been cleaning room" like "They have been playing in the mud"? Action is completed but we don't care here about completed, we are caring about duration, why?




Comments

Popular posts from this blog

commas - Does this sentence have too many subjunctives?

verbs - "Baby is creeping" vs. "baby is crawling" in AmE

time - English notation for hour, minutes and seconds

etymology - Origin of "s--t eating grin"

grammatical number - Use of lone apostrophe for plural?

etymology - Where does the phrase "doctored" originate?

single word requests - What do you call hypothetical inhabitants living on the Moon?