It is not correct to say "they has studied". The correct way is to say "they have studied." There are many different places that a person can check grammar questions such as English grammar websites.
"They had studied" is correct. "Had" is the past tense of "have" when used as an auxiliary verb in perfect tenses.
The correct spelling is "studied." It is spelled with only one "d."
The correct spelling is seriously. "Seriously," she said, "I studied for the test!"
When two sentences are separated by only a comma, this is called a "comma splice", and it is not correct. The correct punctuation is either a semicolon instead of a comma, or to keep the two as separate sentences, each ending in a period.ExamplesComma splice, incorrect: Carla studied Spanish, Peter studied German.Semicolon, correct: Carla studied Spanish; Peter studied German.Two sentences, correct: Carla studied Spanish. Peter studied German.You can also use a coordinating conjunction like "and" to "fix" a comma splice:Carla studied Spanish, and Peter studied German.Note: A similar punctuation error in which two sentences are joined together with no punctuation between them is called a run-on sentence:Carla studied Spanish Peter studied German.
That is the correct spelling of "studying" (going over educational material, or examining something closely).
'have studied' or 'has studied' I have studied you have studied (singular) he, she or it has studied we have studied you have studied (plural) they have studied Some examples (using abbreviations) are: I've studied more than enough science. The trainees have really studied hard. She has studied just enough to pass the test.
The correct spelling is "studied." It is spelled with only one "d."
The correct spelling is considered (thought about, studied).
The correct spelling is seriously. "Seriously," she said, "I studied for the test!"
When two sentences are separated by only a comma, this is called a "comma splice", and it is not correct. The correct punctuation is either a semicolon instead of a comma, or to keep the two as separate sentences, each ending in a period.ExamplesComma splice, incorrect: Carla studied Spanish, Peter studied German.Semicolon, correct: Carla studied Spanish; Peter studied German.Two sentences, correct: Carla studied Spanish. Peter studied German.You can also use a coordinating conjunction like "and" to "fix" a comma splice:Carla studied Spanish, and Peter studied German.Note: A similar punctuation error in which two sentences are joined together with no punctuation between them is called a run-on sentence:Carla studied Spanish Peter studied German.
The correct spelling drops the Y and adds I as studied(learned).
all of the answers are correct
In 1619 tessellations was studied and discovered and in 1891 it was proven to be correct and accurate.
yes
The correct spelling of the past tense of to examine is examined (looked over, studied).
student studied 4 hours on Friday and 2.5 times as many hours on Saturday which of the following is the correct way to determine how many hours the student studied on both days?
"He studies" in the sentence "He studies English in the school" is present tense. "He has studied" is past tense. "He will study" is future tense.
That is the correct spelling of "studying" (going over educational material, or examining something closely).