I'll go shopping with you ,if I( )free tomorrow

I'll go shopping with you ,if I( )free tomorrow I’ll go swimming with you if I( ) free tomorrow为什么填am却不填will 7.I’ll go camping with you,if I _____ free tomorrow. If I will be free tomorrow,I will go with you 改错 i’ii go swimming with you if i- free tomorrow A will be B sh if I （） time ,I'll go shopping with you A 、have B、have had C If you go shopping along with me,I'll treat you ____an if you ____ free tomorrow you can go shopping with us.A are I'll go shopping if I am free.(虚拟语气） I'll go for a walk with you if it __ tomorrow If you ____free tomorrow,I'll go alone I'll go there with you tomorrow afternoon