Differentiate between Formative and Summative Assessments for English Language Learners

Focus on Assessments:

Differentiate between Formative and Summative Assessments for English Language Learners in reference to assessing the Five Domains of Language – Reading Writing  Speaking Listening Presenting

How can these formative assessments build into a summative assessment? Would this look the same for all ELs?

How would you accommodate for ELs so that they are confident to present in a heterogenous classroom of ELs and non-ELs?