I has taken a pen who left on the table yesterday.
no, its not a correct sentence. its have you taken the test before.
You had not taken that into account. Would be the grammatically correct version of that sentence.
Not quite. It should say 'This picture was taken when she was 1 years old.'
It depends how you use it. If you use it after something it can be correct. But being in a sentence by itself isn't correct.
If you use 'you and he' as the subject of the sentence, it is correct: You and he will meet when we get to the restaurant.
Use is present. Used is past. The correct sentence is, This is used for....
The first is almost correct. It should be, "Some athletes have taken drug tests to prove they are not on steroids." That is, "have taken" is the correct form, but it should also be "drug tests" rather than "drugs tests". "Have taken" is the correct form because "have" is the plural form, and "athletes" is plural. The singular form is "has taken", so it would be correct to say "One athlete has taken drug tests to prove he is not on steroids." Always use the past participle "taken" and not the simple past tense "took" in forms that use a form of the auxiliary verb "have": have taken, had taken, has taken, would have taken, and so on.
Your sentence is structurally correct.
There is no use of THE in the sentence. FROGS HOP can be considered as correct too.
he is and they are
Both of those sentences are correct but he first one would be more appropriate to say.
No. I believe you want "Does that have . . ." or "That has . . . "