The auxiliary verb "have" (have, had, will have) is used with the so-called "perfect tenses."
While "looked" is the ordinary past tense of to look, the present perfect tense would be "have looked" or "has looked" (third-person singular).
Using HAVE means that the process of looking has taken place already (present perfect actually referring to the past), or it can be an intensifier meaning "indeed."
(e.g. You should look. / I have looked!)
It also allows a negative statement that is not possible for the simple past tense (archaic I looked not), although it can be done with the past tense did.
I looked / I have looked / I have not looked
I look / I don't look (present conditional) or I didn't look (past tense)
There is a type of puzzle named spot the difference
The main difference between the two products is their ingredients.
The difference between the two options refers to the distinctions or variations between the choices being compared.
"Downward" is an adjective used to describe the direction of movement, while "downwards" is an adverb that modifies a verb indicating a downward action. For example, "The elevator is moving downward" (adjective) versus "She looked downwards" (adverb).
The difference between "i" and "I" is that "I" is always capitalized when referring to oneself as a pronoun, while "i" is not capitalized.
People were judged by how they acted or what they looked like.
The former is to be looked at, the latter to be listened to.
i dont know thats why i looked at this page
i dont know thats why i looked at this page
difference between see and look.you could make out through these sentences.1)I saw him stealing those forks.2)He looked strange.
The correct name is Hatshepsut. The other one is a misspelling. There in no other name that looked like her.
i dont know thats why i looked at this page
i dont know thats why i looked at this page
i dont know thats why i looked at this page
i dont know thats why i looked at this page
i dont know thats why i looked at this page
the poor where misteated by the rich because the rich always looked down on poor people:)