to be bothering, to be given.
to appear, to be talked.
to tell, to know.
to earn, to. be read, not to be forgotten.
to have been, to have seen.
to know, to have spent.
to have overthrown, to be advancing.
to be reading, not to have heard.
to be looking.
to have been snowing.
to be quarrelling.
to have been working.
to be heard.
to be lost, to find, to have been dropped.
to have been waiting.