Past Perfect Continuous (прошедшее совершенное длительное время) в английском языке сочетает в себе элементы времени Past Perfect и времен группы Continuous. То есть, необходимо при образовании предложения в Past Perfect Continuous использовать глагол to be
How to make a spinner
Being a real professional teacher, tutor or educator means being creative and open to experiments, new didactic discoveries. Teachers can develop their creativity in the classroom by offering their students different useful things like a spinner, for example. Such spinners