Let's learn about "연락하자"

계속 연락하자 : Let's keep in touch

[other expressions]

- 계속 연락하자. (to younger people or friends)

- 계속 연락해. (to younger people or friends)

- 계속 연락해요. (honourific by ‘요’)

- 계속 연락합시다. (more honourific by ‘시’)

- 계속 연락하지요. (more honourific by ‘시’)

- 계속 연락하시죠. (more honourific by ‘시’; -시죠 is a short form of -시지요)

- 계속 연락하십시다. (formal; more honourific by ‘시’)

[explanations]

* 계속 : (1) continuation; continuance; renewal (2) [=계속해서] on and on, without stopping

* 계속하다 : continue; maintain; go [keep] on with; keep up; renew; continue; be continuous; go on; last; follow

* 연락 : connection; contact; liaison; communication; relation

* 연락하다 : make contact with; get in touch with; connect with; form a connection [liaison] with; communicate

* 연락하자 : 연락하(the stem of  연락하다) + -자(a non-honourific propositive verb ending suffix means "Let's ~")

* 연락해 : 연락하(the stem of  연락하다; 하 + -어 contracted into 해) + -어(a non-honourific propositive verb ending suffix means "Let's ~")

* 연락해요 : 연락하(the stem of  연락하다; 하 + -어 contracted into 해) + -어(a propositive verb ending suffix means "Let's ~") + -요(an honourific verb ending suffix)

* 연락하시지요 : 연락하(the stem of  연락하다) + -시(a suffix makes a verb more honourific) + -지(a propositive verb ending suffix means "Let's ~") + -요(an honourific verb ending suffix)

* 연락합시다 : 연락하(the stem of  연락하다)  + -ㅂ시다(a propositive honourific verb ending suffix means "Let's ~")

* 연락하십시다 : 연락하(the stem of  연락하다) + -시(a suffix makes a verb more honourific) + + -ㅂ시다(a propositive honourific verb ending suffix means "Let's ~")

* a verb + -자 / -어 : a non-honourific propositive verb ending suffix means "Let's ~"

* a verb + -어 + -요 : an honourific verb ending suffix)

* a verb + -ㅂ시다 / -시지요 / -시죠 / -십시다 : an honourific propositive verb ending suffix means "Let's ~" by '-요' / '-ㅂ'