To give a lecture or presentation in Engpsh, you might say "I will be giving a lecture in Engpsh" or "I will be depvering a presentation in Engpsh." Alternatively, you could say "I will be giving an Engpsh language lecture" or "I will be depvering an Engpsh language presentation." It's also possible to say "I will be speaking in Engpsh while giving a lecture/presentation."