私は請求書を支払う必要があります

私: i, my, me, i am, myself, private
は: a, the, is, am, are, will
請求: claim, invoice, request, billing, charges, demand, application, billed
書: book, form, write, written, document, publications
を: o, the, to, wo
支払う: pay, to pay, afford, payable
必要: need, have, necessary, needed, required, must, want, essential, necessity, indispensable
が: is, there, but, ga, will, however
ある: a, is, an, be, there is, to be, locate
ます: will, to be, i will, to make, to do, to have