  A thorough comprehension of textual data is a fundamental element in
multi-modal video analysis tasks. However, recent works have shown that the
current models do not achieve a comprehensive understanding of the textual data
during the training for the target downstream tasks. Orthogonal to the previous
approaches to this limitation, we postulate that understanding the significance
of the sentence components according to the target task can potentially enhance
the performance of the models. Hence, we utilize the knowledge of a pre-trained
large language model (LLM) to generate text samples from the original ones,
targeting specific sentence components. We propose a weakly supervised
importance estimation module to compute the relative importance of the
components and utilize them to improve different video-language tasks. Through
rigorous quantitative analysis, our proposed method exhibits significant
improvement across several video-language tasks. In particular, our approach
notably enhances video-text retrieval by a relative improvement of 8.3\% in
video-to-text and 1.4\% in text-to-video retrieval over the baselines, in terms
of R@1. Additionally, in video moment retrieval, average mAP shows a relative
improvement ranging from 2.0\% to 13.7 \% across different baselines.
