do vs should

do

verb
  • A syntactic marker for emphasis with the indicative, imperative, and subjunctive moods. 

  • To work for or on, by way of caring for, looking after, preparing, cleaning, keeping in order, etc. 

  • To suffice. 

  • To finish. 

  • To fare, perform (well or poorly). 

  • To have (as an effect). 

  • To perform the tasks or actions associated with (something). 

  • A syntactic marker that refers back to an earlier verb and allows the speaker to avoid repeating the verb; in most dialects, not used with auxiliaries such as be, though it can be in AAVE. 

  • A syntactic marker in a question whose main verb is not another auxiliary verb or be. 

  • To take drugs. 

  • To exist with a purpose or for a reason. 

  • To copy or emulate the actions or behaviour that is associated with the person or thing mentioned. 

  • To travel in, to tour, to make a circuit of. 

  • To be reasonable or acceptable. 

  • To have sex with. (See also do it) 

  • To have as one's job. 

  • To cook. 

  • To convert into a certain form; especially, to translate. 

  • To punish for a misdemeanor. 

  • To make or provide. 

  • A syntactic marker in negations with the indicative and imperative moods. 

  • To treat in a certain way. 

  • To deal with for good and all; to finish up; to undo; to ruin; to do for. 

  • Let’s do New York also. 

  • To kill. 

  • To cash or to advance money for, as a bill or note. 

  • To spend (time) in jail. (See also do time) 

  • To impersonate or depict. 

  • To injure (one's own body part). 

  • To perform; to execute. 

  • To cheat or swindle. 

noun
  • A syllable used in solfège to represent the first and eighth tonic of a major scale. 

  • A homicide. 

  • A party, celebration, social function; usually of moderate size and formality. 

  • Something that can or should be done. 

num
  • The cardinal number occurring after el and before do one in a duodecimal system. Written 10, decimal value 12. 

should

verb
  • Used to form a variant of the present subjunctive, expressing a state or action that is hypothetical, potential, mandated, etc. 

  • Will be likely to (become or do something); indicates a degree of possibility or probability that the stated thing will happen or be true in the future. 

  • Indicates that something is expected to have happened or to be the case now. 

  • Used to express a conditional outcome. 

  • With verbs such as 'see' or 'hear', usually in the second person, used to point out something remarkable in either a good or bad way. 

  • To make a statement of what ought to be true, as opposed to reality. 

  • Used to impart a tentative, conjectural or polite nuance. 

  • Used to express what the speaker would do in another person's situation, as a means of giving a suggestion or recommendation. 

  • Simple past tense of shall. 

  • In questions, asks what is correct, proper, desirable, etc. 

  • Used to issue an instruction (traditionally seen as carrying less force of authority than alternatives such as 'shall' or 'must'). 

  • Used to give advice or opinion that an action is, or would have been, beneficial or desirable. 

noun
  • Something that ought to be the case as opposed to already being the case. 

How often have the words do and should occurred in a corpus of books? (source: Google Ngram Viewer )