Grammar

Present simple

i do
i work
everyday
always
often
usually
sometimes
seldom
never

Past simple

last ...
... ago
in 19xx
yesterday

Future simple

already
just
never

Present continous

now
at the moment
Look!
Listen!

Past continous

while

Present continous perfect

all day
the whole day
how long
since
for

future continous

Present simple perfect

just
yet
never
ever
already
so far
up to now
since
for
recently

past simple peferct

already
just
never

past continous perfect

how long
since
for

future simple perfect

future continous perfect