usually，always后面第三人称单数加不加S?

Question

如题所述

Answer 1

一般现在时，第3人称单数要加如
He
always(usually)
does
his
homework
after
dinner.
He
never
throws
rubbish
about.
一般过去时，即使有usually，always等，也不用加s，而是用过去式，如
He
always(usually,never)
did
his
work
after
dinner
last
year.
如果前面有情态动词，如can,will,would,may,can,could,should,might,must,need等，或是不定式（动词前加to）的，就不用加s
如
He
can
always
do
his
homework
by
himself.
He
will
usually
do
his
homework
after
dinner.
His
teacher
asks
him
to
do
his
homework
after
dinner.
有时候，一个句子里有两个人物，但动词还要加s,是因为主语只有一个，如
He
usually
GOES
to
the
park
with
his
classmates.
句子中，classmates不是主语，he是主语，所以要加s(因为go是特例，要加es)
常见的就这些

Answer 2

一般现在时,第3人称单数要加如
he
always(usually)
does
his
homework
after
dinner.
he
never
throws
rubbish
about.
一般过去时,即使有usually,always等,也不用加s,而是用过去式,如
he
always(usually,never)
did
his
work
after
dinner
last
year.
如果前面有情态动词,如can,will,would,may,can,could,should,might,must,need等,或是不定式(动词前加to)的,就不用加s
如
he
can
always
do
his
homework
by
himself.
he
will
usually
do
his
homework
after
dinner.
his
teacher
asks
him
to
do
his
homework
after
dinner.
有时候,一个句子里有两个人物,但动词还要加s,是因为主语只有一个,如
he
usually
goes
to
the
park
with
his
classmates.
句子中,classmates不是主语,he是主语,所以要加s(因为go是特例,要加es)
常见的就这些

Answer 3

这些词只是频率副词，只要是涉及到第三人称单数，后面用的是一般现在时，就要加s