Below is what Doc 4444 says on Approach Phraseolygy
12.3.3.2 APPROACH INSTRUCTIONS
a) CLEARED (or PROCEED) VIA (designation);
b) CLEARED TO (clearance limit) VIA (designation);
c) CLEARED (or PROCEED) VIA (details of route to befollowed);
d) CLEARED (type of approach) APPROACH [RUNWAY (number)];
e) CLEARED (type of approach) RUNWAY (number)FOLLOWED BY CIRCLING TO RUNWAY (number);
f) CLEARED APPROACH [RUNWAY (number)];
g) COMMENCE APPROACH AT (time);
*h) REQUEST STRAIGHT-IN [(type of approach)] APPROACH [RUNWAY (number)];
i) CLEARED STRAIGHT-IN [(type of approach)] APPROACH [RUNWAY (number)];
j) REPORT VISUAL;
k) REPORT RUNWAY [LIGHTS] IN SIGHT;
… when a pilot requests a visual approach
*l) REQUEST VISUAL APPROACH;
m) CLEARED VISUAL APPROACH RUNWAY (number);
… to request if a pilot is able to accept a visual approach
n) ADVISE ABLE TO ACCEPT VISUAL APPROACH RUNWAY (number);
Note.—See 6.5.3 for provisions relating to visual approach procedures.
… in case of successive visual approaches when the pilot of a succeeding aircraft has reported
having the preceding aircraft in sight
o) CLEARED VISUAL APPROACH RUNWAY (number), MAINTAIN OWN SEPARATION FROM PRECEDING (aircraft type and wake turbulence category as appropriate)
[CAUTION WAKE TURBULENCE];
p) REPORT (significant point); [OUTBOUND, or INBOUND];
q) REPORT COMMENCING PROCEDURE TURN;
*r) REQUEST VMC DESCENT;
s) MAINTAIN OWN SEPARATION;
t) MAINTAIN VMC;
u) ARE YOU FAMILIAR WITH (name) APPROACH PROCEDURE;
*v) REQUEST (type of approach) APPROACH [RUNWAY (number)];
*w) REQUEST (MLS/RNAV plain-language designator);
x) CLEARED (MLS/RNAV plain-language designator).
* Denotes pilot transmission.
Hope it helps
Cheers zilir