will skulk
Regular verb: skulk - skulked- skulked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I will skulk
you will skulk
she will skulk
we will skulk
you will skulk
they will skulk 	I will be skulking
you will be skulking
she will be skulking
we will be skulking
you will be skulking
they will be skulking	I will have skulked
you will have skulked
she will have skulked
we will have skulked
you will have skulked
they will have skulked	I will have been skulking
you will have been skulking
she will have been skulking
we will have been skulking
you will have been skulking
they will have been skulking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I will not skulk
you will not skulk
she will not skulk
we will not skulk
you will not skulk
they will not skulk 	I will not be skulking
you will not be skulking
she will not be skulking
we will not be skulking
you will not be skulking
they will not be skulking	I will not have skulked
you will not have skulked
she will not have skulked
we will not have skulked
you will not have skulked
they will not have skulked	I will not have been skulking
you will not have been skulking
she will not have been skulking
we will not have been skulking
you will not have been skulking
they will not have been skulking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
will I skulk?
will you skulk?
will she skulk?
will we skulk?
will you skulk?
will they skulk? 	will I be skulking?
will you be skulking?
will she be skulking?
will we be skulking?
will you be skulking?
will they be skulking? 	will I have skulked?
will you have skulked?
will she have skulked?
will we have skulked?
will you have skulked?
will they have skulked? 	will I have been skulking?
will you have been skulking?
will she have been skulking?
will we have been skulking?
will you have been skulking?
will they have been skulking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
will I not skulk?
will you not skulk?
will she not skulk?
will we not skulk?
will you not skulk?
will they not skulk? 	will I not be skulking?
will you not be skulking?
will she not be skulking?
will we not be skulking?
will you not be skulking?
will they not be skulking? 	will I not have skulked?
will you not have skulked?
will she not have skulked?
will we not have skulked?
will you not have skulked?
will they not have skulked? 	will I not have been skulking?
will you not have been skulking?
will she not have been skulking?
will we not have been skulking?
will you not have been skulking?
will they not have been skulking?