كَيْ، لِكَيْ، كَيْمَا، لِكَيْمَا so that, in order that, that, in order to, to, so (as), with a view to, in an effort to, in a bid to, with the aim of, for the purpose of

كَيْ لاَ، كَيْلا، لِكَيْ لاَ، لِكَيْلا lest, in order not to, so as not to, that.. not, in order that.. not