ページ1:

<Progressive tense>
F.
'be verb + verb-ing
eg). She is watching TV now.
past
<present>
future
A single point
of expression
of what you are
doing at that
moment.
←
eg). He was working at that store.
+
<Past>
present
9
future
eg). I will be swimming at this time tomorrow
in Hawaii.
Past
present
<future>

ページ2:

In Spanish,
estar + V-ando
(be)
Tverb-ing]
• Why be verb + verb-ing?
①In old English, be verb + verb - ende]
or
The verb + verb - inde
or
V-iendo.
used as
unified.
(V-ing)
gerund.
I be verb + verb - inde.
」
eg).
-ings, inde
t-in J
Estoy andando
↓
I am walking
Similar sound so,
unified!
eg).
be walkin
Xandar = walk
However, F-in, sounds too weak.
Therefore, ing
J
put it back!
another way of
progressive tense
still used,
eg) on sale,
In Contemporary
English.
In old English, be verb + on + verb-ing
be verb + verb-ing 1
be verb + verb-ing
②