SPOCA- can you correct my analysis?

Subject: S
Predicator: P
Direct Object: DO
Indirect Object: IO
Subject Complement:SC
Direct Object Complement: DOC
Adverbial: A

• No entrance can afford to waste time, money or effort.

Subject: no entrance (noun phrase)
Head: entrance
Determiner: no
Predicator: can afford (verb phrase)
H: afford
Premodifier: can
Direct Object: to waste time, money or effort (clause)
Predicator: to waste ( non-finite, infinitive)
Direct Object: time, money or effort

• They spent a lot of money on advertising in national newspapers.

S: They
P: spent
DO: a lot of money (noun phrase)
Head: money
Det: a lot of
Adverbial: on advertising in national newspapers ( prepositional phrase)
H: on
Prepositional complement: advertising in national newspapers (non finite clause)
P: advertising (non-finite/ ing form)
A: in national newspapers (prep. Phrase)
H: in
Prep comp: national newspapers (noun phrase)
H: newspapers
Premodifier: national

• Starting a business has become the new Great American Dream.

S: starting a business (non finite verb clause)
S: ?
P: starting (non finite/ ing form)
DO: a business (noun phrase)
H: business
Det: a
P: has become (verb phrase)
H: become
PreM: has
DO: the new Great American Dream (noun phrase)
H: dream
Determiner: the
Premodifiers: new, great, American (?)

• Many people are convinced that they will never achieve total job satisfaction by working for someone else.

S: Many people (noun phrase0
H: people
Det: many

P: are convinced (vp)
H: convinced
Prem: are

DO: that they will never achieve total job satisfaction by working for someone else ( clause)

S: They
P: will achieve (vp)
H: achieve
Pre: will
DO: total job satisfaction by working for someone else (np)
H: satisfaction
Premodifiers: total, job
Postm: by working for someone else (pp)
H: by
Pc: working for someone else (non finite verb clause)
P: working
IO: for someone else (PP)
H: for
Pc: someone else (np)
H: someone
Postm: else
A: never

• The questions why people buy at certain stores has been a topic for many years.

S: the question why people bye at certain stores (np)
H: question
D: the
Postm: why people buy at certain stores (restrictive relative clause)
S: people
P: buy
A: at certain stores (pp)
H: at
Pc: certain stores (np)
H: stores
Prem: certain

P: has been (vp)
H: been
Pre: has
DO: a topic for many years (Np)
H: topic
D: a
Postm: for many years (pp)
H: for
Pc: many years (np)
H: years
Det: many