Tom had to resign.
Tom teve que renunciar.
You should resign.
Devias demitir-te.
I had to resign.
Tive de me demitir.
He was compelled to resign on account of ill health.
Ele foi obrigado a renunciar devido a problemas de saúde.
There are rumors that he will resign.
Há rumores de que ele vai renunciar.
My boss was forced to resign.
O meu chefe foi forçado a demitir-se.