The word "tunnelled" is the past participle form of the verb "tunnel", which means to construct a passage or underground tunnel. The etymology of "tunnel" can be traced back to the Middle English word "tonel" or "tunel", which referred to a tunnel or a spout. This Middle English term is further derived from the French word "tunel" or "tonel", which meant a tunnel or large pipe. The French word, in turn, originated from the Old French word "tonel" signifying a cask or a barrel. Over time, the term "tunnel" evolved to specifically denote an underground passage, giving rise to the verb form "tunnelled" to describe the act of constructing tunnels.
CONDITIONAL
I
would tunnelled
you
would tunnelled
he/she/it
would tunnelled
we
would tunnelled
they
would tunnelled
I
would tunnel
we
would tunnel
you
would tunnel
he/she/it
would tunnel
they
would tunnel
CONDITIONAL CONTINUOUS
I
would be tunnelling
you
would be tunnelling
he/she/it
would be tunnelling
we
would be tunnelling
they
would be tunnelling
CONDITIONAL PERFECT
I
would have tunnelled
you
would have tunnelled
he/she/it
would have tunnelled
we
would have tunnelled
they
would have tunnelled
CONDITIONAL PERFECT CONTINUOUS
I
would have been tunnelling
you
would have been tunnelling
he/she/it
would have been tunnelling
we
would have been tunnelling
they
would have been tunnelling
FUTURE
I
will tunnel
you
will tunnel
he/she/it
will tunnel
we
will tunnel
they
will tunnel
FUTURE CONTINUOUS
I
will be tunnelling
you
will be tunnelling
he/she/it
will be tunnelling
we
will be tunnelling
they
will be tunnelling
FUTURE PERFECT
I
will have tunnelled
you
will have tunnelled
he/she/it
will have tunnelled
we
will have tunnelled
they
will have tunnelled
I
will have tunnelled, will have tunneled
we
will have tunnelled, will have tunneled
you
will have tunnelled, will have tunneled
he/she/it
will have tunnelled, will have tunneled
they
will have tunnelled, will have tunneled
FUTURE PERFECT CONTINUOUS
I
will have been tunnelling
you
will have been tunnelling
he/she/it
will have been tunnelling
we
will have been tunnelling
they
will have been tunnelling
IMPERATIVE
you
tunnel
we
let´s tunnel
to tunnel
PAST
I
tunnelled
you
tunnelled
he/she/it
tunnelled
we
tunnelled
they
tunnelled
I
tunnelled, tunneled
we
tunnelled, tunneled
you
tunnelled, tunneled
he/she/it
tunnelled, tunneled
they
tunnelled, tunneled
PAST CONTINUOUS
I
was tunnelling
you
were tunnelling
he/she/it
was tunnelling
we
were tunnelling
they
were tunnelling
PAST PARTICIPLE
tunnelled
PAST PERFECT
I
had tunnelled
you
had tunnelled
he/she/it
had tunnelled
we
had tunnelled
they
had tunnelled
I
had tunnelled, had tunneled
we
had tunnelled, had tunneled
you
had tunnelled, had tunneled
he/she/it
had tunnelled, had tunneled
they
had tunnelled, had tunneled
PAST PERFECT CONTINUOUS
I
had been tunnelling
you
had been tunnelling
he/she/it
had been tunnelling
we
had been tunnelling
they
had been tunnelling
PRESENT
I
tunnel
you
tunnel
he/she/it
tunnels
we
tunnel
they
tunnel
PRESENT CONTINUOUS
I
am tunnelling
you
are tunnelling
he/she/it
is tunnelling
we
are tunnelling
they
are tunnelling
PRESENT PARTICIPLE
tunnelling
PRESENT PERFECT
I
have tunnelled
you
have tunnelled
he/she/it
has tunnelled
we
have tunnelled
they
have tunnelled
I
have tunneled, have tunnelled
we
have tunneled, have tunnelled
you
have tunneled, have tunnelled
he/she/it
has tunneled, has tunnelled
they
have tunneled, have tunnelled
PRESENT PERFECT CONTINUOUS
I
have been tunnelling
you
have been tunnelling
he/she/it
has been tunnelling
we
have been tunnelling
they
have been tunnelling
I
am tunneling, am tunnelling
we
are tunnelling, are tunneling
you
are tunnelling, are tunneling
he/she/it
is tunneling, is tunnelling
they
are tunnelling, are tunneling
I
was tunnelling, was tunneling
we
were tunneling, were tunnelling
you
were tunneling, were tunnelling
he/she/it
was tunnelling, was tunneling
they
were tunneling, were tunnelling
I
will be tunneling, will be tunnelling
we
will be tunneling, will be tunnelling
you
will be tunneling, will be tunnelling
he/she/it
will be tunneling, will be tunnelling
they
will be tunneling, will be tunnelling
I
have been tunneling, have been tunnelling
we
have been tunneling, have been tunnelling
you
have been tunnelling, have been tunneling
he/she/it
has been tunneling, has been tunnelling
they
have been tunnelling, have been tunneling
I
had been tunnelling, had been tunneling
we
had been tunnelling, had been tunneling
you
had been tunnelling, had been tunneling
he/she/it
had been tunnelling, had been tunneling
they
had been tunnelling, had been tunneling
I
will have been tunneling, will have been tunnelling
we
will have been tunneling, will have been tunnelling
you
will have been tunneling, will have been tunnelling
he/she/it
will have been tunneling, will have been tunnelling
they
will have been tunneling, will have been tunnelling
I
would have tunnelled, would have tunneled
we
would have tunnelled, would have tunneled
you
would have tunnelled, would have tunneled
he/she/it
would have tunnelled, would have tunneled
they
would have tunnelled, would have tunneled
I
would be tunnelling, would be tunneling
we
would be tunnelling, would be tunneling
you
would be tunnelling, would be tunneling
he/she/it
would be tunnelling, would be tunneling
they
would be tunnelling, would be tunneling
I
would have been tunnelling, would have been tunneling
we
would have been tunnelling, would have been tunneling
you
would have been tunnelling, would have been tunneling
he/she/it
would have been tunnelling, would have been tunneling
they
would have been tunnelling, would have been tunneling