could seek
Irregular verb: seek - sought- sought

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could seek
you could seek
she could seek
we could seek
you could seek
they could seek 	I could be seeking
you could be seeking
she could be seeking
we could be seeking
you could be seeking
they could be seeking	I could have sought
you could have sought
she could have sought
we could have sought
you could have sought
they could have sought	I could have been seeking
you could have been seeking
she could have been seeking
we could have been seeking
you could have been seeking
they could have been seeking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't seek
you couldn't seek
she couldn't seek
we couldn't seek
you couldn't seek
they couldn't seek 	I couldn't be seeking
you couldn't be seeking
she couldn't be seeking
we couldn't be seeking
you couldn't be seeking
they couldn't be seeking	I couldn't have sought
you couldn't have sought
she couldn't have sought
we couldn't have sought
you couldn't have sought
they couldn't have sought	I couldn't have been seeking
you couldn't have been seeking
she couldn't have been seeking
we couldn't have been seeking
you couldn't have been seeking
they couldn't have been seeking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I seek?
could you seek?
could she seek?
could we seek?
could you seek?
could they seek? 	could I be seeking?
could you be seeking?
could she be seeking?
could we be seeking?
could you be seeking?
could they be seeking? 	could I have sought?
could you have sought?
could she have sought?
could we have sought?
could you have sought?
could they have sought? 	could I have been seeking?
could you have been seeking?
could she have been seeking?
could we have been seeking?
could you have been seeking?
could they have been seeking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I seek?
couldn't you seek?
couldn't she seek?
couldn't we seek?
couldn't you seek?
couldn't they seek? 	couldn't I be seeking?
couldn't you be seeking?
couldn't she be seeking?
couldn't we be seeking?
couldn't you be seeking?
couldn't they be seeking? 	couldn't I have sought?
couldn't you have sought?
couldn't she have sought?
couldn't we have sought?
couldn't you have sought?
couldn't they have sought? 	couldn't I have been seeking?
couldn't you have been seeking?
couldn't she have been seeking?
couldn't we have been seeking?
couldn't you have been seeking?
couldn't they have been seeking?