Abstract
This study examines the impact of online English Teachers' Stroking Behaviors on L2 grammar learning through online learning of L2 grammar for EFL learners. Sixty intermediate EFL learners were chosen for this reason and split randomly into three telegram groups. A researcher-made grammar test was administered as a pre-test prior to beginning the online course. For all three groups during one month, the determined grammar points were instructed in the same manner by one teacher. The instructor also used some pre-planned terms and phrases in the first category that suggested a positive conditional stimulation in her input during the teaching process. The researcher often used some per-planned terms and phrases with negative conditional stimulation for the next group, and the instructor provided the students with the input for the last group as the control group, suggesting no emotional themes. Another researcher-made grammar test was given as the post test for three groups at the final session. The findings showed that the positive verbal conditional stimulation of the teacher was substantially more efficient than the negative conditional stimulations; however, the negative ones were more efficient than no stimulation. Interview results revealed that, compared to receiving no stimulations, the participants prefer to receive stimulations from the instructor, including harmful ones.