4.Unless he won't be too busy he will help you
5. Provided he will be busy he will tell you6. If I have enough time, I'll visit the Russian Museum7. If you work hard, you'll have enough time8. As soon as I return, I'll call you up1. If you go to Perm, you'll see him2. Unless i won't be too busy, i'll go there for certain3. When you see him, you'll speak to him, i hope