can cling
Irregular verb: cling - clung- clung

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can cling
you can cling
he can cling
we can cling
you can cling
they can cling 	I can be clinging
you can be clinging
he can be clinging
we can be clinging
you can be clinging
they can be clinging	I can have clung
you can have clung
he can have clung
we can have clung
you can have clung
they can have clung	I can have been clinging
you can have been clinging
he can have been clinging
we can have been clinging
you can have been clinging
they can have been clinging	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot cling
you cannot cling
he cannot cling
we cannot cling
you cannot cling
they cannot cling 	I cannot be clinging
you cannot be clinging
he cannot be clinging
we cannot be clinging
you cannot be clinging
they cannot be clinging	I cannot have clung
you cannot have clung
he cannot have clung
we cannot have clung
you cannot have clung
they cannot have clung	I cannot have been clinging
you cannot have been clinging
he cannot have been clinging
we cannot have been clinging
you cannot have been clinging
they cannot have been clinging	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I cling?
can you cling?
can he cling?
can we cling?
can you cling?
can they cling? 	can I be clinging?
can you be clinging?
can he be clinging?
can we be clinging?
can you be clinging?
can they be clinging? 	can I have clung?
can you have clung?
can he have clung?
can we have clung?
can you have clung?
can they have clung? 	can I have been clinging?
can you have been clinging?
can he have been clinging?
can we have been clinging?
can you have been clinging?
can they have been clinging? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not cling?
can you not cling?
can he not cling?
can we not cling?
can you not cling?
can they not cling? 	can I not be clinging?
can you not be clinging?
can he not be clinging?
can we not be clinging?
can you not be clinging?
can they not be clinging? 	can I not have clung?
can you not have clung?
can he not have clung?
can we not have clung?
can you not have clung?
can they not have clung? 	can I not have been clinging?
can you not have been clinging?
can he not have been clinging?
can we not have been clinging?
can you not have been clinging?
can they not have been clinging?