right i agree with that because i know personally myself i've been in the same job for three years it'll be three years in August and i've already been drug tested three times
I have been on drugs so they have tested me three times. 
mnli hypothesis: I have been on drugs so they have tested me three times.  premise: right i agree with that because i know personally myself i've been in the same job for three years it'll be three years in August and i've already been drug tested three times