I totally agree with you. I'll be happy to share information with you concerning english. I want to learn spanish actually. It would be great to have the opportunity to learn with someone.

Hello, I would be very interested in practicing spanish with you. I can assist you with english. Feel free to ask for help

Hello, I would love to help you with you english. I could use your help with Spanish. Feel free to contact me if you need help.

Hi there, I would be very interested in learning with you as we can benefit from each other. Feel free to ask for tips or help.

You can use months, years back to express a regret for an action you think you should have done in one of the periods you specified earlier. As for when to say in months or some other period, it's generally used when you are looking forward to something that will or would like to happen in the future. I hope I've answered to your question.

Hello, firstly before looking at your message you should correct that greeting. The correct form would be to say hi everyone or fellow italki users. As for your sentences: I suggest to use these: 1-We'll now test product #... 2-If you are showing in person the test case, saying steps to reproduce or here are the steps to reproduce would be fine. If not, try to engage by saying the following steps are the one to reproduce. 3- Is it the correct behaviour?,or Is is the right way to handle things?

It's quiet understandable, just a couple of things you need to correct such as fatigue, the appropriate word would be tired or warned out and instead of saying sleep a lot, you could say to rest a bit or to catch my breath if the message you're sending is not formal. Other than that I think it's alright. Good luck with the rest .