9. - He plays the guitar very well.
Future if , unless,
in case
when , until, as soon
as, before , after
- If the weather is fine tomorrow ,
we shall have a picnic.
15. Present
Continuous is am are
ing
I am
He, She, It working.
is
The boy doing homework.
playing tennis.
We, They , You reading in the library.
are writing some letters.
The boys
17. Present Perfect Tense Adverbs
of time
since ( for ( just (
already ( yet (
recently ( lately (
never ( ever
(
so far ( up to now
( up to the present
time ( many times (
several times ( over
18. - We have lived in this house since
our father died.
- Since he has changed his job , he
has been much happier.
- That child has grown very much
since I last seen him.
29. Past Perfect
Tense
had
I , He , She, gone out before
Jim John came.
finished reading
You , We , had when Bill came
They, in.
Tom and left when Helen
Mary reached home.