English verb conjugation CAN WHISTLE

Regular verb: whistle - whistled - whistled

Affirmation

Simple form

I can whistle
you can whistle
he can whistle
we can whistle
you can whistle
they can whistle

V-ing form

I can be whistling
you can be whistling
he can be whistling
we can be whistling
you can be whistling
they can be whistling

Perfect

I can have whistled
you can have whistled
he can have whistled
we can have whistled
you can have whistled
they can have whistled

V-ing perfect

I can have been whistling
you can have been whistling
he can have been whistling
we can have been whistling
you can have been whistling
they can have been whistling

Negation

Simple form

I cannot whistle
you cannot whistle
he cannot whistle
we cannot whistle
you cannot whistle
they cannot whistle

V-ing form

I cannot be whistling
you cannot be whistling
he cannot be whistling
we cannot be whistling
you cannot be whistling
they cannot be whistling

Perfect

I cannot have whistled
you cannot have whistled
he cannot have whistled
we cannot have whistled
you cannot have whistled
they cannot have whistled

V-ing perfect

I cannot have been whistling
you cannot have been whistling
he cannot have been whistling
we cannot have been whistling
you cannot have been whistling
they cannot have been whistling

Interrogative form

Simple form

can I whistle?
can you whistle?
can he whistle?
can we whistle?
can you whistle?
can they whistle?

V-ing form

can I be whistling?
can you be whistling?
can he be whistling?
can we be whistling?
can you be whistling?
can they be whistling?

Perfect

can I have whistled?
can you have whistled?
can he have whistled?
can we have whistled?
can you have whistled?
can they have whistled?

V-ing perfect

can I have been whistling?
can you have been whistling?
can he have been whistling?
can we have been whistling?
can you have been whistling?
can they have been whistling?

Interro-negative form

Simple form

can I not whistle?
can you not whistle?
can he not whistle?
can we not whistle?
can you not whistle?
can they not whistle?

V-ing form

can I not be whistling?
can you not be whistling?
can he not be whistling?
can we not be whistling?
can you not be whistling?
can they not be whistling?

Perfect

can I not have whistled?
can you not have whistled?
can he not have whistled?
can we not have whistled?
can you not have whistled?
can they not have whistled?

V-ing perfect

can I not have been whistling?
can you not have been whistling?
can he not have been whistling?
can we not have been whistling?
can you not have been whistling?
can they not have been whistling?

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