Duration process (kejadian masih dalam proses / kejadian belum selesai):
have/has been
V1+ing
Result (kejadian sudah selesai/pernah terjadi):
have/has been
have/has
V3
2 happening together in precise time ( 2 kejadian scr bersamaan dalam 1 waktu):
was, were
V1+ing
Past (lampau/sudah terjadi): yesterday, last, a go, ...
was, were
did
V1 * V2
Now (saat ini/sekarang ):
is, am, are
V1+ing
Fact: usually, sometimes, never, every
is, am, are => non verb
do/does => verb
with s * without s
Precise time in the next (masih akan terjadi):
will be
V1+ing
Plan (masih rencana):
will+be
will
V1