to have a good grasp of sth meaning, to have a good grasp of sth definition | English Cobuild dictionary

Collins
have         

[

1]  
  ( has    3rd person present)   ( having    present participle)   ( had    past tense & past participle  )   (AUXILIARY VERB USES)  
In spoken English, forms of have    are often shortened, for example I have is shortened to I've and has not is shortened to hasn't.         
1       aux   You use the forms have    and has with a past participle to form the present perfect tense of verbs.      
Alex has already gone...      AUX -ed  
My term hasn't finished yet...      AUX -ed  
What have you found so far?...      AUX -ed  
Frankie hasn't been feeling well for a long time.      AUX been -ing  
2       aux   You use the form had with a past participle to form the past perfect tense of verbs.  
When I met her, she had just returned from a job interview...      AUX -ed  
3       aux   Have is used in question tags.  
You haven't sent her away, have you?...      cl AUX n  
4       aux   You use have    when you are confirming or contradicting a statement containing `have', `has', or `had', or answering a question.      
`Have you been to York before?'—`Yes we have.'      AUX  
5       aux   The form having with a past participle can be used to introduce a clause in which you mention an action which had already happened before another action began.  
He arrived in San Francisco, having left New Jersey on January 19th...      AUX -ed  
Translation English Cobuild Collins Dictionary  
See also:

have, have, have, have a fit

Collaborative Dictionary     English Cobuild
n.
avoir le coup d'oeil
exp.
have a great time; enjoy oneself
adj.
to be gutsy means to have guts
to be gutsy: avoir du cran
v.
continue to have something; keep something
exp.
be in a good shape
exp.
yell at someone; attack someone verbally or physically
[Slang];[UK]
n.
avoir le coup
adj.
large enough to have an effect or be important
[US] The series has aroused considerable interest.
n.
avoir un bon fromage
n.
avoir la bouche sèche
n.
avoir l'impression que
n.
avoir une langue de vipère
n.
casser la croûte
n.
avoir une dent contre quelqu'un
n.
avoir mal aux dents, aux yeux
n.
avoir un mal de tête, de dents
n.
avoir un mal de tête, de dents
n.
avoir le chic pour ça
exp.
mind about smth./smb.; be disturbed by smth./smb.
E.g.: She has a beef with people smoking next to her.
exp.
generally, an endearment expression used to describe someone who, contrary to the appearances, proves to have strength, determination
n.
avoir un chat dans la gorge
n.
avoir un compte à régler avec quelqu'un
n.
avoir la bouche pâteuse
n.
avoir le coup de main
n.
avoir quelque chose de prévu
n.
avoir du temps devant soi
n.
avoir le dessus
n.
avoir l'idée que
n.
avoir l'idée que
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"Collins Cobuild English Dictionary for Advanced Learners 4th edition published in 2003 © HarperCollins Publishers 1987, 1995, 2001, 2003 and Collins A-Z Thesaurus 1st edition first published in 1995 © HarperCollins Publishers 1995"
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