Both are correct in their own different ways. to have flowed is the past tense of to flow eg the rivers have flowed to the sea to have flown is the past tense of to fly eg the birds have flown away
You can say both. "The year flew by" would be more appropriate when talking about a past year, as in, "I remember 2008. That year flew by." "The year has flown by" would be used when you are still in one year and talking about how the previous months have that year seem to have gone by quickly, as in "I can't believe it is already October. The year has flown by!"
It is correct
It is correct to say them both, but it matters on what you want to say.
descended? Driven (in a car, as opposed to flown in a plane). Walked (as opposed to having flown somewhere.)
no it is not correct to say enjoy your vacations
infinitive: flowpast: flowedpast participle: flowed
You should say, "This week has flown by quickly." "Flown" is the correct past participle to use in this context.
Infinitive: to flow Past tense: flew Past participle: flown If flow is the base verb then past and past participle are flowed / flowed The river flowed to the sea. The river has flowed through our property for years.
The past form of "flow" is "flowed," and the past participle form is also "flowed."
yes
You use flown when you want to say flew, and vice versa.
No, it would be that the rivers flowed over, or had flowed over (their banks). I've long wondered why it is that rivers always run, they never walk or stroll.
The river flowed to the sea.The lava flowed across the road. Electricity flowed through the wire.
The river flowed quickly.
The past tense is "flowed.
i would take it as a no because i cannot find a website that says it or it hasn't so i would say no. no spacecraft has ever landed on or flown past neptune
You can say both. "The year flew by" would be more appropriate when talking about a past year, as in, "I remember 2008. That year flew by." "The year has flown by" would be used when you are still in one year and talking about how the previous months have that year seem to have gone by quickly, as in "I can't believe it is already October. The year has flown by!"