Vocabulary 'take in account'

The first sentence is fine. The second sentence is nonsense.

However, after taking into account for years, he has not lent me.

After taking what into account? Has not lent you what? To take something into account means to give consideration to a known quality or quantity, and to make a judgment based on that. So, one might say "After taking into account my careless ways with money . . ." Obviously, you mean he has not lent you money for your education, but you still have to say it.

However, after taking into account my profligate way for years, he has not lent me the money i asked him for.

Hi Sentanta thank you,
but can I say 'after taking into account the loan for years?

No, not really--take into account means to give consideration to something before making a decision. If he had not loaned you any money, he could hardly take "the loan" into account. He might take into account your request for a loan, but that wouldn't make much sense either. The decision he has to make is whether or not to loan you money. The fact that you asked for the loan is not likely to be something which would sway his decision one way or the other. Some things which may well affect his decision are how well you handle money, how well you attend to your studies, whether or not he thinks you need more education. Are you getting what i'm saying?

(EDIT: some typos here, i've corrected them)

Yes I can understand,thanks for your explanation.