[vil]

Hi Tdol,

Thank you for your explanatory reply.

I agree absolutely with your reasoning.

My "having worked" or "having been sent" denote an action prior to that of the definite verb, while my "working" or "being sent" denote an action simultaneous with the action expressed by the finite verb; depending on the tense form of the finite verb it may refer to the present, past or future.

Thank you again for your attention.

Regards.

V.