In the process of learning English as a foreign language, different factors intervene, among them age, aptitude, and attitude of the people, learning styles, motivation, and personality. This is mixed research, whose purpose is to identify the inhibiting factors involved in the learning of English as a foreign language in the learners of three training centers of the National Learning Service - SENA. For this research, six groups belonging to two technology-level training programs were sampled. The ages of the participants range from 16 to 28 years old. The focus group and different questionnaires were used as data collection instruments. This research allowed verifying the incidence that inhibiting factors have in the learning of English, which will allow us to carry out a second phase in which actions are implemented to mitigate the impact of such factors.