He mainly studied birds; finches were the main ones he studied.
Present perfect is formed with: have/has + past participle.The past participle of study is studied. So the present perfect is:have studied --- I have studied English Grammarhas studied -- She has studied algebra
electronics
Female Wasps
Sally Ride studied Astronomy and Physical Science.
'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.
I/you/we/they have studied. He/she/it has studied.
The past tense of study is studied. I want to study English when I go to college. I studied English when I was in college.
The past tense of "study" is "studied," and the past participle is also "studied."
He studied at Philosophical Institute.he studied mathematics,Biology but did not finish at the University of Vienna.
Weather and Climate are studied in meteorology.
The present perfect tense of the verb "study" is "have studied."
Gandhi studied Law and he practiced to be a Barrister.
Steve Irwin studied animals.
he studied the earth and what he think it looked like
yes he studied in ssn
yes, both can be studied.