which

why

where

when

I walk

I have walked

I’ll be walking

I’ve been walking

extremely hot

extreme heat

the hottest

hotter

it happens

happens

that happens

to happen

have been arriving

will be arrived

will be arriving

will have arrived

a few

little

a little

few

take them off

them take off

take off them

them off take

As a result

Therefore

However

In addition

had been

were

have been

will be