Словосочетание to be a teacher сделать утвердительным вопросительным отрицательным с местоимениями I,he,she,if,you,we,they
I/you/we/they want to be а teacher или he/she wants to be а teacher Do you/ they/ we want to be а teacher? или Does she/he want to be а teacher? I/ you/ we/ they don't want to be а teacher или She/he doen't want to be а teacher