Dictionary Form VERB + つもりです as “I intend/plan to VERB”
This construct is primarily used to express one’s own intentions. Given that conveying someone else’s intentions is considered presumptuous it is accordingly considered impolite to use this grammar pattern for a second or third-person subject. In some cases, it is acceptable to use the pattern in interrogative form with a second-person subject, given that the speaker is considerably familiar with the said addressee.
Nihongo wo narau tsumori desu. (I plan to learn Japanese.)
Negativeない Form VERB + つもりです as “I intend/plan not to VERB”
Kiyou, gakkou ni ikanai tsumori desu. (I’m planning on not going to school today.)