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0 i didn't ask why her brother always visited us every week. i didn't ask why her brother always visits us every week. i didn't ask why her brother always visiting us every week. So i want tell my experience, which should grammatically correct? btw about my question : So i want tell my experience, which should grammatically correct? should i add 'to' or not ? So i want to tell my experience, which should grammatically correct? past-tense share | improve this question asked 11 mins ago Frd 1 New contri

0 I have a text file with letters (tab delimited), and a numpy array ( obj ) with a few letters (single row). The text file has rows with different numbers of columns. Some rows in the text file may have multiple copies of same letters (I will like to consider only a single copy of a letter in each row). Letters in the same row of the text file are assumed to be similar to each other. Also, each letter of the numpy array obj is present in one or more rows of the text file. Here is an example of the text file (you can download the file from here): b q a i m l r j n o r o e i k u i s In the example, the letter o is mentioned two times in the second row, and the letter i is denoted two times in the third row. I will like to consider single copies of letters rows of the text file.