– substitution exercises, e.g. I’ve got a cat, I’ve got a dog, I’ve got a hamster … (the structure is the same, the lexis is substituted)
– transformation, e.g. Fill in the sentences with have or has (using the structure in appropriate form)
– comparison, e.g. Open the brackets putting the verb in either Present Perfect or Past Simple (new grammatical unit is compared with previously known structure)
NOTE! The more exercises on this stage given, the better it it for later practice.