Can the article 50 bill be substantially altered or delayed by the House of Lords?

The bill to trigger Brexit moves to the Lords next week, and a flurry of new amendments will be introduced. This could lead to the bill ping-ponging between the two Houses, and a high-stakes battle of willsLast week, MPs voted the European Union (Notification of Withdrawal) bill through the House of Commons. None of the amendments proposed by opposition MPs from various parties was passed. Parliament is now in recess for a week, but the House of Lords will give the bill a second reading on 20 Fe